sheperdess_sweep

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哈特·克莱恩 英文诗歌

哈特·克莱恩 英文诗歌

哈特·克莱恩英文诗歌Hart Crane (1899-1932) 是美国现代主义诗人,他以其复杂而富有音乐性的诗歌而闻名。

下面是他的一首英文诗歌的全文和解读: "The Bridge"(《大桥》)。

I.How many dawns, chill from his rippling rest.The seagull's wings shall dip and pivot him,。

Shedding white rings of tumult, building high.Over the chained bay waters Liberty—。

Then, with inviolate curve, forsake our eyes.As apparitional as sails that cross.Some page of figures to be filed away;—Till elevators drop us from our day . . .I think of cinemas, panoramic sleights.With multitudes bent toward some flashing scene. Never disclosed, but hastened to again,。

Foretold to other eyes on the same screen;And Thee, across the harbor, silver-paced.Some motion ever unspent in thy stride,—。

Implicitly thy freedom staying thee!Out of some subway scuttle, cell or loft.A bedlamite speeds to thy parapets,。

小学英语英语故事(童话故事)TheShepherdessandtheChimneySweeper

小学英语英语故事(童话故事)TheShepherdessandtheChimneySweeper

The Shepherdess and the Chimney-SweeperHave you ever seen a very old chest, black with age, and covered with outlandish carved ornaments and curling leaves? Well, in a certain parlor there was just such a chest, handed down from some great-grandmother. Carved all up and down it, ran tulips and roses-odd-looking flourishes-and from fanciful thickets little stags stuck out their antlered heads.Right in the middle of the chest a whole man was carved. He made you laugh to look at him grinning away, though one couldn't call his grinning laughing. He had hind legs like a goat's, little horn on his forehead, and a long beard. All his children called him "GeneralHeadquarters-Hindquarters-Gives-Orders-Front-and-Rear-Sergeant-Billygoat-Legs." It was a difficult name to pronounce and not many people get to be called by it, but he must have been very important or why should anyone have taken trouble to carve him at all?However, there he stood, forever eyeing a delightful little china shepherdess on the table top under the mirror. The little shepherdess wore golden shoes, and looped up her gown fetchingly with a red rose. Her hat was gold, and even her crook was gold. She was simply charming!Close by her stood a little chimney-sweep, as black as coal, but made of porcelain too. He was as clean and tidy as anyone can be, because you see he was only an ornamental chimney-sweep. If the china-makers had wanted to, they could just as easily have turned him out as a prince, for he had a jaunty way of holding his ladder, and his cheeks were as pink as a girl's. That was a mistake, don't you think? He should have been dabbed with a pinch or two of soot.He and the shepherdess stood quite close together. They had both been put on the table where they stood and, having been placed there, they had become engaged because they suited each other exactly. Both were young, both were made of the same porcelain, and neither could stand a shock.Near them stood another figure, three times as big as they were. It was an old Chinaman who could nod his head. He too was made of porcelain, and he said he was the little shepherdess's grandfather. But he couldn't prove it. Nevertheless he claimed that this gave him authority over her, and whenGeneral-Headquarters-Hindquarters-Gives-Orders-Front-and-Rear-Sergeant-Billygoa t-Legs asked for her hand in marriage, the old Chinaman had nodded consent. "There's a husband for you!" the old Chinaman told the shepherdess. "A husband who, I am inclined to believe, is made of mahogany. He can make you Mrs.General-Headquarters-Hindquarters-Gives-Orders-Front-and-Rear-Sergeant-Billygoa t-Legs. He has the whole chest full of silver, and who knows what else he's got hidden away in his secret drawers?""But I don't want to go and live in the dark chest," said the little shepherdess. "I have heard people say he's got eleven china wives in there already.""Then you will make twelve," said the Chinaman. "Tonight, as soon as the old chest commences to creak I'll marry you off to him, as sure as I'm a Chinaman." Then henodded off to sleep. The little shepherdess cried and looked at her true love, the porcelain chimney-sweep."Please let's run away into the big, wide world," she begged him, "for we can't stay here.""I'll do just what you want me to," the little chimney-sweep told her. "Let's run away right now. I feel sure I can support you by chimney-sweeping.""I wish we were safely down off this table," she said. "I'll never be happy until we are out in the big, wide world."He told her not to worry, and showed her how to drop her little feet over the table edge, and how to step from one gilded leaf to another down the carved leg of the table. He set up his ladder to help her, and down they came safely to the floor. But when they glanced at the old chest they saw a great commotion. All the carved stags were craning their necks, tossing their antlers, and turning their heads. General-Headquarters-Hindquarters-Gives-Orders-Front-and-Rear-Sergeant-Billygoat-Legs jumped high in the air, and shouted to the old Chinaman, "They're running away! They're running away!"This frightened them so that they jumped quickly into a drawer of the window-seat. Here they found three or four decks of cards, not quite complete, and a little puppet theatre, which was set up as well as it was possible to do. A play was in progress, and all the diamond queens, heart queens, club queens, and spade queens sat in front row and fanned themselves with the tulips they held in their hands. Behind them the knaves lined up, showing that they had heads both at the top and at the bottom, as face cards do have. The play was all about two people, who were not allowed to marry, and it made the shepherdess cry because it was so like her own story."I can't bear to see any more," she said. "I must get out of this drawer at once." But when they got back to the floor and looked up at the table, they saw the old Chinaman was wide awake now. Not only his head, but his whole body rocked forward. The lower part of his body was one solid piece, you see."The old Chainman's coming!" cried the little Shepherdess, who was so upset that she fell down on her porcelain knees."I have an idea," said the chimney-sweeper. "We'll hide in the pot-pourri vase in the corner. There we can rest upon rose petals and lavender, and when he finds us we can throw salt in his eyes.""It's no use," she said. "Besides, I know the pot-pourri vase was once the old Chainman's sweetheart, and where there used to be love a little affection is sure to remain. No, there's nothing for us to do but to run away into the big wide world." "Are you really so brave that you'd go into the wide world with me?" asked the chimney-sweep. "Have you thought about how big it is, and that we can never come back here?""I have," she said.The chimney-sweep looked her straight in the face and said, "My way lies up through the chimney. Are you really so brave that you'll come with me into the stove, and crawl through the stovepipe? It will take us to the chimney. Once we get there, I'llknow what to do. We shall climb so high that they'll never catch us, and at the very top there's an opening into the big wide world."He led her to the stove door."It looks very black in there," she said. But she let him lead her through the stove and through the stovepipe, where it was pitch-black night."Now we've come to the chimney," he said. "And see! See how the bright star shines over our heads."A real star, high up in the heavens, shone down as if it wished to show them the way. They clambered and scuffled, for it was hard climbing and terribly steep-way, way up high! But he lifted her up, held her safe, and found the best places for her little porcelain feet. At last they reached the top of the chimney, where they sat down. For they were so tired, and no wonder!Overhead was the starry sky, and spread before them were all the housetops in the town. They looked out on the big wide world. The poor shepherdess had never thought it would be like that. She flung her little head against the chimney-sweep, and sobbed so many tears that the gilt washed off her sash."This is too much," she said. "I can't bear it. The wide world is too big. Oh! If I only were back on my table under the mirror. I'll never be happy until I stand there again, just as before. I followed you faithfully out into the world, and if you love me the least bit you'll take me right home."The chimney-sweep tried to persuade her that it wasn't sensible to go back. He talked to her about the old Chinaman, and ofGeneral-Headquarters-Hindquarters-Gives-Orders-Front-and-Rear-Sergeant-Billygoa t-Legs, but she sobbed so hard and kissed her chimney-sweep so much that he had to do as she said, though he thought it was the wrong thing to do.So back down the chimney they climbed with great difficulty, and they crawled through the wretched stovepipe into the dark stove. Here they listened behind the door, to find out what was happening in the room. Everything seemed quiet, so they opened the door and-oh, what a pity! There on the floor lay the Chinaman, in three pieces. When he had come running after them, he tumbled off the table and smashed. His whole back had come off in one piece, and his head had rolled into the corner. General-Headquarters-Hindquarters-Gives-Orders-Front-and-Rear-Sergeant-Billygoa t-Legs was standing where he always stood, looking thoughtful."Oh, dear," said the little shepherdess, "poor old grandfather is all broken up, and it's entirely our fault. I shall never live through it." She wrung her delicate hands."He can be patched," said the chimney-sweep. "He can be riveted. Don't be so upset about him. A little glue for his back and a strong rivet in his neck, and he will be just as good as new, and just as disagreeable as he was before.""Will he, really?" she asked, as they climbed back to their old place on the table. "Here we are," said the chimney-sweep. "Back where we started from. We could have saved ourselves a lot of trouble.""Now if only old grandfather were mended," said the little shepherdess. "Is mending terribly expensive?"He was mended well enough. The family had his back glued together, and a strong rivet put through his neck. That made him as good as new, except that never again could he nod his head."It seems to me that you have grown haughty since your fall, though I don't see why you should be proud of it,"General-Headquarters-Hindquarters-Gives-Orders-Front-and-Rear-Sergeant-Billygoat-Legs complained. "Am I to have her, or am I not?"The chimney-sweep and the little shepherdess looked so pleadingly at the old Chinaman, for they were deathly afraid he would nod. But he didn't. He couldn't. And neither did he care to tell anyone that, forever and a day, he'd have to wear a rivet in his neck.So the little porcelain people remained together. They thanked goodness for the rivet in grandfather's neck, and they kept on loving each other until the day they broke.。

remove noise翻译

remove noise翻译

remove noise翻译remove noise的翻译是"去除噪声",它可以应用在各种领域,包括音频、图像和数据处理。

下面是一些关于去除噪声的用法和中英文对照例句:1. In audio processing, advanced algorithms can effectively remove noise from recordings.在音频处理中,先进的算法可以有效地从录音中去除噪声。

2. Image denoising techniques can be used to remove noise from digital photographs.图像去噪技术可以用于去除数字照片中的噪声。

3. Data scientists often apply filters to remove noise from datasets, ensuring accurate analysis.数据科学家经常使用滤波器从数据集中去除噪声,以确保准确的分析。

4. The noise removal feature in this video editing software allows users to enhance the audio quality.这个视频编辑软件中的去噪功能可以帮助用户提升音频质量。

5. High-quality headphones can effectively remove background noise, providing a better listening experience.高品质的耳机可以有效地去除背景噪声,提供更好的听音体验。

6. The noise-canceling feature on this microphone eliminates unwanted background noise during recording.这款麦克风上的降噪功能可以在录音过程中消除不必要的背景噪声。

Rigol DS1054Z数字波形 oscilloscope 说明书

Rigol DS1054Z数字波形 oscilloscope 说明书

Calibrating Voltage
1 kHz (±10%) Positive Square Wave, 0.2 V p-p (±2%)
Other Specifications
Within Specified Accuracy Full Operation Storage
50˚ to 95˚F (10˚ to 35˚C), ≤ 85% RH 32˚ to 104˚ F (0˚ to 40˚C), ≤ 85% RH -4˚ to 158˚ F (-20˚ to +70˚C)
Coupling Auto Norm TV-V TV-H
Bandwidth 100Hz - 40MHz 100Hz - 40MHz DC -1kHz 1 kHz - 100kHz
Int 1.5 div 1.5 div. 0.5 div 0.5 div
Ext ≥ 0.1Vp-p ≥ 0.1Vp-p ≥ 0.05Vp-p ≥ 0.05Vp-p
ADD
agebraic sum of CH 1 + CH 2
Polarity Reversal
CH 2 only
Max. Input Voltage
400 V (DC to AC peak)
SWEEP SYSTEM
Operating Modes
Main Sweep SpeeD
Accuracy Sweep Magnification Delayed Sweep Speed Holdoff
OPTIONAL: PR-32A Demodulator Probe, PR-37A x1/x10/REF. Probe, PR-100A x100 Probe, PR-55 High Voltage x1000 Probe, LC-210A Carrying Case

英国文学史及选读复习8-summary-of-the-Age-of-Elizabeth

英国文学史及选读复习8-summary-of-the-Age-of-Elizabeth

Summary of the Age of Elizabeth ( I )This period is generally regarded as the greatest in the history of English literature. Historically, we note in this age the tremendous impetus received from the Renaissance, from the Reformation, and from the exploration of the New World. It was marked by a strong national spirit, by patriotism, by religious tolerance, by social content, by intellectual progress, and by unbounded enthusiasm.Such an age, of thought, feeling, and vigorous action, finds its best expression in the drama; and the wonderful development of the drama, culminating in Shakespeare, is the most significant characteristic of the Elizabethan period. Though the age produced some excellent prose works, it is essentially an age of poetry; and the poetry is remarkable for its variety, its freshness, its youthful and romantic feeling. Both the poetry and drama were permeated by Italian influence, which was dominant in English literature from Chaucer to the Restoration. The literature of this age is often called the literature of the Renaissance, though, the Renaissance itself began much earlier, and for a century and a half added very little to English literary possessions.In the study of the age we have noted:1.The non-dramatic poetsThe poets who did not write for the stage.a. The center of this group is Edmund Spenser whose Shepherd’s Calendar(1579) marked the appearance of the first national poet since Chaucer’s death in 1400. His most famous work is The Faery Queen .The Shepherd’s Calendar is about his love and his melancholy over the lost love. The themes are generally rural life, nature, love in the fields; and the speakers are shepherds and shepherdesses. It consists of twelve pastoral poems, or eclogues, one for each month of the year.The Faery Queen. The original plan of the poem included twenty four books, each of which was to recount the adventure and triumph of a knight who represented a moral virtue. Spenser completed only six books, celebrating holiness, temperance, chastity, friendship, justice, and courtesy. For The Faery Queen, Spenser invented a new verse form, which has been called since his day the Spenserian stanza. It is in nine lines, eight of five feet each and last of six feet, riming ababbcbcc.Characteristics of Spenser’s po etry:1. perfect melody;2.a rare sense of beauty;3. a splendid imagination;4. a lofty moral purity and seriousness;5.a delicate idealismA Gentle Knight was pricking on the plaine,Ycladd in mightei armes and silver shielde,Wherein old dints of deepe woundes did remaine.The cruell markes of many a bloody fielde;Yet armes till that time did he never wield:His angry steede did chide his foming bitt,As much disdayning to the curbe to yield:Full iolly knight he seemed, and faire did sitt,As one for knightly giusts and fierce encounters fitt.b. minor poets associated with Spenser1. Thomas Sackville 1536-1608 earl of Dorset and Lord High Treasurer of England. In imitation of Dante’s Inferno, he formed the design of a great poem called The Mirror for Magistrates. He wrote also,in connection with Thomas Norton, first English tragedy, Ferrex and Porrex = Gorboduc2. Michael Drayton 1563-1631 most voluminous, chief work is Polyolbion, an enormous poem of many thousand couplets, describing the towns, mountains, and rivers of Britain, with the interesting legends connected with each. Two other long works Baron’s Wars , Heroic Epistle of England and “Ballad of Agincourt”.3. George Chapman 1559-1634, wrote chiefly for the stage. His plays, which were for the most part merely poems in dialogue, fell far below the high dramatic standard of his time and are now almost unread. His most famous work is the metrical translation of the Iliad and of the Odyssey. He is also remembered as the finisher of Marlowe’s Hero and Leander, in which, apart from the drama, the Renaissance movement is seen at perhaps its highest point in English poetry.4. Philip Sidney 1554-1586, the ideal gentleman, more interesting as a man than as a writer. His life expresses, better than any single literary work, the two ideals of the age,--- personal honor and national greatness. As a writer, he is known by three principal works, all published after his death. Arcadia is a pastoral romance. Apologie for Poetrie = Defense of Poesie , appeared in answer to a pamphlet by Stephen Gosson called The School of Abuse, in which the poetry of the age and its unbridled pleasure were denounced with puritan thoroughness and conviction. Astrophel and Stella is a collection of songs and sonnets addressed to Lady Penelope Devereux, to whom Sidney had once been betrothed.2.The rise and development of the drama in EnglandFirst the need, then the story, then the play; that seems to be the natural development of the drama in its simplest form. The great deeds of a people are treasured in its literature and later generations represent in play or pantomime certain parts of the story which appeal most powerfully to the imagination. To act a part seems as natural to humanity as to tell a story; and originally the drama is but an old story retold to the eye, a story put into action by living performers, who for the moment “make believe” or imagine themselves to be the old heroes.In Europe, as in Greece, the drama had a distinctly religious origin. The first characters were drawn from the New Testament, and the object of the first plays was to make the church service more impressive, or to emphasize moral lessons by showing the reward of the good and the punishment of the evil doer. In the latter days of the Roman Empire the church found the stage possessed by frightful plays, which debased the morals of a people already fallen too low. So the corrupt drama was driven from the stage, and plays of every kind were forbidden. But mankind loves a spectacle, and soon the church itself provided a substitute for the forbidden plays in the famous Mysteries and Miracles.a. Miracle and Mystery playsIn France the name miracle was given to any play representing the lives of the saints, while the mystery represented scenes from the life of Christ. In England this distinction was almost unknown;the name miracle was used indiscriminately for all plays having their origin in the Bible or in the lives of the saints; and the name mystery, to distinguish a certain class of plays, was not used until long after the religious drama had passed away. By the year 1300 the miracles were out of ecclesiastical hands and adopted eagerly by the town guilds.b. Morality playsThe second period of drama is shown by the increasing prevalence of the morality plays. In these the characters were allegorical personages,--- life, death, repentance, goodness, love, greed, and other virtues and vices. The morality marks a distinct advance over the miracle in that it gave free scope to the imagination for new plots and incidents. Of the known authors of moralities, two of the best are John Skelton, who wrote Magnificence and David Lindsay. They satirize or denounceabuses of church and state, and introduce living personages thinly disguised as allegories; so that the stage first becomes a power in shaping events and correcting abuses.c. InterludesIt is impossible to draw any accurate line of distinction between the moralities and interludes. In general we may think of the latter as dramatic scenes, sometimes given at banquets and entertainments where a little fun was wanted. The interludes originated, undoubtedly, in a sense of humor and was raised to the distinct dramatic form known as comedy by Heywood 1497?-1580?The Play of the Weather, The Fou r P’sd. Artistic period of the dramaThe artistic is the final stage in the development of the English drama. It differs radically from the other in that its chief purpose is not to point a moral but to represent human life as it is. The first true play in English is the comedy, Ralph Royster Doyster by Nicholas Udall. The story is that of a conceited fop in love with a widow, who is already engaged to another man. Gammer Gurton’s Needle, a domestic comedy, representing the life of the peasant class.The first English tragedy, Gorboduc, was written by Thomas Sackville and Thomas Norton. It is the first play to be written in blank verse.e. Dramatic unitiesIn the classic play the so-called dramatic unities of time, place, and action were strictly observed.Time and place must remain the same, the play could represent a period of only a few hours, and whatever action was introduced must take place at the spot where the play began. The severe simplicity of the classical drama seemed only to hamper the exuberant English spirit. The English drama, on the other hand, strove to represent the whole sweep of life in a single play.f. Two schools of dramaThe university wits generally upheld the classical ideal and ridiculed the crudeness of the new English plays. Sackville, Norton, Sidney were of this class.Lyly, Greene, Peele, Marlowe, these popular playwrights were against these. They recognized the English love of action and disregarded the dramatic unities in their endeavor to present life as it is.John Lyly 1554?-1606, known as having developed the pernicious literary style called euphuism.His two prose works Euphues, the Anatomy of Wit; Euphues and His England. The style is affected and overelegant, abounds in odd conceits, and uses hopelessly involved sentences.Thomas Kyd. Spanish Tragedy, melodrama of passion, copied by Marlow and Shakespeare.Robert Greene 1558-1592, plays the chief part in the early development of romantic comedy. Friar Bacon and Friar BungayChristopher Marlowe 1564—1593. In addition to Hero and Leander, he is famous for four dramas, known as one-man type of tragedy, each revolving about one central personality who is consumed by the lust of power. Tamburlaine, is the story of Timur, the Tartar. Faustus is of a scholar who longs for infinite knowledge. The Jew of Malta, is a study of lust for wealth. Edward II , isa tragic study of a king’s weakness and misery.Marlow is the only dramatist of the time who is ever compared with Shakespeare. When we remember that he died at 29, probably before Shakespeare had produced a single great play, we must wonder what he might have done had he outlived his wretched youth and become a man. Here and there his work is remarkable for its splendid imagination, for the stateliness of its verse, and for its rare bits of poetic beauty; but in dramatic instinct, in wide knowledge of human life, in humor, in delineation of woman’s character, in the delicate fancy----in a word, in all that makes a dramaticgenius, Shakespeare stands alone. Marlow simply prepared the way for the master who was to follow.g. Variety of the early drama1. chronicle plays, founded on historical events and characters. Of Shakespeare’s 37 plays, ten are true chronicle plays of English kings.2. The domestic plays began with crude home scenes introduced into the miracles and developed ina score of different ways, from the coarse humor of Gammer Gurton’s Needle to the comedy of manners of Jonson and the later dramatists. Shakespeare’s The Taming of the Shrew , Merry Wives of Windsor belong to this class.3. The so-called court comedy was marked by elaborate dialogues, jests, retorts, and endless plays on words, rather than by action. It was made popular by Lyly’s success, and was imitated in Shakespeare’s “Lylian” comedies, such as Love’s Labour’s Lost , Two Gentlemen of Verona4. Romantic comedy and tragedy suggest the most artistic and finished types of the drama, brought to perfection in The Merchant of Venice , Romeo and Juliet , The Tempest .5. a. classical plays, favored by cultivated audiences. b. melodrama, favorite of the groundlings.c. tragedy of blood, such as Shakespeare’s Titus Andronicus , Hamlet Lear , Macbeth .3. Conclusion: Shakespeare is the only dramatist whose plays cover the whole range of the drama. He raised the drama from a blundering experiment to a perfection of form and expression which has never since been rivaled.。

【RFsister仪器操作】矢量网络分析仪一:面板说明

【RFsister仪器操作】矢量网络分析仪一:面板说明

【RFsister仪器操作】矢量网络分析仪一:面板说明----初级版导语:本周我们给大家带来的是网络分析仪的入门操作,图文并茂,拿着说明就能对网分进行简单的操作。

当然每个仪器都有非常多的功能,本次系列主要涉及S11参数查看和常用功能操作。

仪器操作说明仪器信息如下图:一、面板说明:1、功能面板分区如下2、区域一:测试通道,通过以下4个按钮可以进行测试通道的切换与选择。

按键说明a)Channel Prev:选择上一个通道b)Channel Next:选择下一个通道c)Trace Prev:选择上一个轨迹d)Trace Next:选择下一个轨迹3、区域二:常用功能操作栏。

按键说明:a)ChannelMax:通道最大化b)TraceMax:轨迹最大化c)Meas测量类型:S11\S21\S12\S22转换调整d)Format格式:LOG、PH、DELAY、SMITH、POLAR、LINMAG、SWR、REAL、IMAGe)Scale标尺:扫描线、基准、位置、参考线的设定f)Display显示:显示窗口的设定、测试扫描线的模拟参照等g)Avg平均值、平滑系数的设定h)CAL:校准菜单4、区域三:常用功能操作栏按键说明:a)Start:起始频率设定b)Stop::终止频率设定c)Center:中心频率的设定d)Span:扫描频宽的设定e)Sweepsetup:扫描设置f)Trigger:触发5、区域四:选择栏,上下左右以及确认操作6、区域五:按键说明:a)Marker:Marker点的设定菜单b)Markersearch:Marker搜查c)Markerfctn:Marker光标功能d)Analysis:仿真功能7、区域六:数字键操作区域8、区域七:按键说明:a)Save/Recall:贮存、调取键b)System:系统菜单设定键c)Preset:系统复位键。

三十首英文诗歌欣赏(中英文对照)

三十首英文诗歌欣赏(中英文对照)

威廉姆·华滋华斯春之女神着素装 spring goeth all in white 罗伯特·布里季 robert bridgesspring goeth all in white,crowned with milk-white may;in fleecy flocks of light,o'er heaven the white clouds stray; white butterflies in the air;white daisies prank the ground;the cherry and hoary pear,scatter their snow around.春之女神着素装,山楂花冠乳白光;天上分明一群羊,白云朵朵自来往;粉蝶空中时蹁跹;廷命菊花饰郊原;樱桃梨树共争艳,四处非花如雪片。

the river of life 生命之川thomas campbell 妥默司·康沫尔the more we live, more brief appear our life's succeeding stages;a day to childhood seems a year,and years like passing ages.the gladsome current of our youth,ere passion yet disorders,steals lingering like a river smooth,along its grassy borders.but as the care-worn cheets grow wan,and sorrow's shafts fly thicker,ye stars, that measure life to man,why seem your courses quicker?when joys have lost their bloom and breath and life itself is vapid,why, as we reach the falls of death,feel we its tide more rapid?it may be strange-yet who would change time's coures to slower speeding,when one by one our friends have gone and left our bosoms bleeding?heaven gives our years of fading strength indemnifying fleetness;and those of youth,a seeming length,proportion'd their sweetness.人生越老,岁月越短,生命的历程似在飞换;儿时的一天如同一载,一载如同几个朝代。

典范英语Good English 第七册17 拓荒女孩劳拉·因格尔斯·怀尔德的故事

典范英语Good English 第七册17 拓荒女孩劳拉·因格尔斯·怀尔德的故事

《典范英语》(7_17)教学参考Pioneer Girl: the Story of Laura Ingalls Wilder 教学参考的目的在于为实验课提供一个基本的思路和框架,帮助实验教师更好地把握课题理念。

课题组鼓励实验教师结合学生的实际情况适当做出调整,将实验课上出特色。

一、教学目标1.语言目标:学生能够听懂并理解故事的内容;能够有感情地、绘声绘色地朗读;能够复述故事的主要情节;能够完成与故事相关的写作任务。

2.非语言目标:培养学生坚强、勇敢、乐观的开拓精神;培养学生面对生活的积极心态和战胜困难的意志力;让学生深刻体会家的含义。

说明:语言目标由教师负责检查,确保学生完成任务,达到要求。

非语言目标具有开放性,需要教师围绕有意义的话题与学生进行真诚交流,激发学生的学习兴趣和参与热情,让学生在有思想、有内容的开放性语言实践活动中习得语言,树立正确的价值观。

二、课时安排要求学生每周完成一部作品,每周安排一节或两节实验课,课时放在学生读完该部作品之后。

三、课前任务要求学生每天朗读15-20分钟,辅以默读。

做到听读结合,认真把握和体会故事的内容,并适当积累好词好句。

四、课堂教学基本步骤1. 导入(Lead-in):启发学生思考提出与故事相关的问题请学生回答,如:Have you had any adventures in a wild place?/Have you ever been camping in a wild place like in the woods?Who can describe your camping/adventure experience?Have you heard of Laura Ingalls Wilder?教师出示Laura Ingalls Wilder的照片,对其作简要介绍,然后回归故事内容。

Laura Ingalls Wilder lived in America 130 years ago. She wrote many popular children’s stories. Laura’s family were pioneers and she had many adventures as they travelled through woods, over prairies and across rivers in their covered wagon. She wrote the stories based on her adventure experience.2. 朗读(Reading aloud):朗读与思考相结合(1)检查学生朗读。

面向小直径薄壁管表面质量检测的散斑干涉图像滤波方法研究

面向小直径薄壁管表面质量检测的散斑干涉图像滤波方法研究

面向小直径薄壁管表面质量检测的散斑干涉图像滤波方法研究陈杰阳雷罗建东陈杰1988—/男/硕士/毕业于四川大学/从事无损检测研究与应用工作/中国核动力研究设计院(成都610213)阳雷1980—/男/硕士/毕业于西南交通大学/从事无损检测研究与应用工作/中国核动力研究设计院(成都610213)罗建东1986—/男/博士/毕业于中国核动力研究设计院/从事无损检测研究与应用工作/中国核动力研究设计院(成都610213)摘要利用散斑干涉测量技术对材料表面质量进行检测时,干涉图像存在大量高频散斑噪声,严重影响了表面质量检测的准确度及测量精度。

本文以小直径薄壁管表面为检测对象,提出了一种自适应窗口傅里叶变换滤波方法对散斑噪声进行滤波,首先利用小波变换获得最佳的窗口大小,然后利用窗口傅里叶脊对应的振幅动态修正频谱阈值,最后利用傅里叶脊对应的局部频率设置相应的通频带完成傅里叶逆变换获得滤波后的图像,并与等值线窗口法和二阶方向偏微分方程法进行对比分析。

研究结果表明,自适应窗口傅里叶变换滤波法滤波效果最好,表面质量检测准确度及测量精度高。

关键词小直径管;薄壁管;散斑干涉;图像滤波;自适应窗口中图分类号:TG178文献标识码:ADOI:10.19694/ki.issn2095-2457.2020.15.016 AbstractThe interference image contains a lot of high frequency speckle noise when using the digital speckle interferometry to measure the material surface quality,which seriously affects the accuracy of surface quality detection and measurement accuracy.In this paper,an adaptive window Fourier transform filtering method is proposed to filter the speckle noise on the surface of small-diameter thin-walled tube.Firstly,the optimal window size is obtained by wavelet transform,then the amplitude corresponding to the window Fourier ridge is used to dynamically modify the spectrum threshold,and finally the corresponding pass band is set by the local frequency corresponding to the Fourier ridge to complete the Fourier transform The filtered image is obtained by inverse transformation and compared with contoured window method and second-order directional partial differential equation method.The results show that the adaptive window Fourier transform filtering method has good filtering effect,high accuracy of surface quality detection and measurement.Key WordsSmall-diameter pipe;Thin-walled pipe;Speckle fringe pattern; Filtering;Adaptive parameters0引言在核反应堆关键部件的研制过程中,必须针对小直径薄壁管的表面质量进行全面的检测及评价。

动画大师研究——俄罗斯

动画大师研究——俄罗斯

欧洲动画 欧洲动画其动画风格特征与美式动画、日本动画并不相似,多方尝 试各种不同媒材与表现手法,有时虽流于形式化,但亦不失创意,并不 断翻新人们对动画的观感。 按制作国家分类 法国动画 英国动画 波兰动画 按制作公司分类 Aardman Animations(英国,专制黏土动画,代表作为酷狗宝贝) 疯影动画工作室(法国,代表作为大雨大雨一直下) 表现形式 :传统动画; 定格动画 ;黏土动画 ;沙动画 ;混合媒介动画 ;电 脑flash动画 ;3D动画 代表作 酷狗宝贝 (英国) 大雨大雨一直下 (法国) 王子与公主 (法国) 黑魔岛 (法国) 至NET奇兵 (法国) 戆豆先生 (Mr. Bean - The Animation Series) (英国) 阿迪太空漫游 (法国)

Jacques-Rémy Girerd 雅克勒密?吉雷(1952-) 雅克勒密?吉雷1952年生于法国卢瓦尔省Mars市,1975年获 得里昂美术学院毕业考试第一名,1984年创建Folimage公 司,1999年建立"欧洲火药库学校"(Ecole Européenne de la Poudrière),教授动画片制作。25年中他创作了百余部 作品,其中包括电视系列剧,短片,中片等等。他的作品有 《生活的乐趣》(Le bonheur de la vie,1990)《我珍爱 的小行星》(Ma petite planète chérie,1994)、《铃铛儿 童》(L’enfant au grelot,1997)等,曾获得多项国际大奖, 其中包括安纳西国际动画电影节最佳突出贡献奖、金卡通奖 (欧洲的奥斯卡奖)等。雅克勒密?吉雷是动画片《青蛙的 预言》(La Prophétie des Grenouilles,2004)的导演,他 所领导的Folimage公司六年磨一剑,创作出法国继《国王与 小鸟》之后的又一部动画长片《青蛙的预言》。 2004年4月11日下午,雅克勒密?吉雷来到北京广播学院动 画学院为师生们放映了《青蛙的预言》并讲述了制作此片背 后许多不为人知的故事。在师生们的提问下,他也谈到一些 他关于动画片的创作、生产、管理等诸方面的看法。

扫描,抽壳

扫描,抽壳

学习内容
3. 要更改截面类型,在“扫描”(Sweep) 选项卡上,单击创建大小 和形状保持不变的截面,或单击创建大小和形状可以沿扫描变化的截 面。 注意 除非指定了截面类型,否则开始选择轨迹时会自动设置。如果选择了 一条轨迹,截面类型会被设置为恒定。如果选择了多条轨迹,它会被 设置为可变。单击截面类型命令可覆盖自动设置。 4. 单击创建实体扫描,或单击创建曲面扫描。 5. 要沿着扫描移除材料,可单击。单击反向从中移除材料的草绘侧 。 6. 要给出扫描厚度,请单击,然后键入或选择厚度值。使用在草绘 的一侧、另一侧或两侧之间切换加厚方向。 7. 对于移除材料的曲面扫描,单击“面组”(Quilts) 收集器,然后 选择要修剪的面组。
学习内容
9. 要设置相切: a. 单击“相切”(Tangency) 选项卡。 b. 在“轨迹”(Trajectories) 框中,从列表中选择一条轨迹。 c. 在“参考”(References) 下,选择一个选项将扫描截面设置为包 含一条中心线,该中心线在选定轨迹的“侧 1”(Side 1) 或“侧 2”(Side 2) 与曲面相切,或与“选定”(Selected) 曲面相切。
扫描,抽壳
学习目标
• 掌握扫描操作步骤及参数设置 • 掌握抽壳操作步骤及参数设置
学习内容
一:扫描
将二维截面沿着指定的轨迹线扫描生成三维实体特征,使 用扫描建立增料或减料特征时首先要有一条轨迹线,然后再建 立沿轨迹线扫描的特征截面。
学习内容
操作步பைடு நூலகம்:
1. 单击“模型”(Model) ▶ “扫描” (Sweep)。“扫描”(Sweep) 选项卡随即打开。 2. 要选择一条或多条轨迹,单击“参考”(References) 选项卡,单 击“轨迹”(Trajectories) 收集器,然后选择现有曲线链或边链。 注意 • 按住 CTRL 键以选择多个轨迹。按住 SHIFT 键以选择形成链的多 个图元。如果需要,请单击“细节”(Details) 打开“链”(Chain) 对话框来选择轨迹段。 • 选择的第一个链随即变成原始轨迹。一个箭头出现在原始轨迹上 ,从轨迹的起点指向扫描将要跟随的路径。单击该箭头,将轨迹的起 点更改到轨迹的另一个端点。 • 要移除轨迹,右键单击并选取“移除”(Remove)。这对除原点轨 迹外的所有轨迹均有效。要移除 x 轨迹或法向轨迹,清除 X 或 N 复 选框以移除属性,然后移除轨迹。不能替换或移除存在相切参考的轨 迹。

安徒生

安徒生


At 14, he moved to Copenhagen to seek employment as an actor. Having an excellent soprano voal Danish Theatre, but his voice soon changed.
Early works
In
1829, Andersen enjoyed considerable success with a short story titled "A Journey on Foot from Holmen's Canal to the East Point of Amager". He also published a comedy and a collection of poems that season.
Andersen had already published his first story, The Ghost at Palnatoke's Grave in 1822. Though not a keen student, he also attended school at Elsinore, until 1827.

Grave
Early Life
As
a child, he built a small puppet theatre and made clothes for his puppets. He had a passion for literature and read dramatic works voraciously, including Ludvig Holberg and William Shakespeare.

AD9273BSVZ-50;AD9273BSVZ-25;AD9273BBCZ-25;AD9273BSVZ-40;AD9273BBCZ-40;中文规格书,Datasheet资料

AD9273BSVZ-50;AD9273BSVZ-25;AD9273BBCZ-25;AD9273BSVZ-40;AD9273BBCZ-40;中文规格书,Datasheet资料

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CLK+ CLK–
AD9273 TABLE OF CONTENTS
Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Product Highlights ........................................................................... 3 Specifications..................................................................................... 4 AC Specifications.......................................................................... 4 Digital Specifications ................................................................... 8 Switching Specifications .............................................................. 9 ADC Timing Diagrams ................................................................. 10 Absolute Maximum Ratings.......................................................... 11 Thermal Impedance ................................................................... 11 ESD Caution ................................................................................ 11 Pin Configuration and Function Descriptions ........................... 12 Typical Performance Characteristics ........................................... 15 Equivalent Circuits ......................................................................... 19 Theory of Operation ...................................................................... 21 Ultrasound .................................................................................. 21 Channel Overview ..................................................................... 22 Input Overdrive .......................................................................... 25 CW Doppler Operation............................................................. 25 TGC Operation ........................................................................... 27 ADC ............................................................................................. 31 Clock Input Considerations ...................................................... 31 Serial Port Interface (SPI) .............................................................. 38 Hardware Interface..................................................................... 38 Memory Map .................................................................................. 40 Reading the Memory Map Table .............................................. 40 Reserved Locations .................................................................... 40 Default Values ............................................................................. 40 Logic Levels ................................................................................. 40 Outline Dimensions ....................................................................... 44 Ordering Guide .......................................................................... 45

IPC-7351B & PCBL Land Pattern Naming Convention

IPC-7351B & PCBL Land Pattern Naming Convention

I P C-7351B N a m i n g C o n v e n t i o n f o r S t a n d a r d S M T L a n d P a t t e r n sSurface Mount Land PatternsComponent, Category Land Pattern Name Ball Grid Array’s...............................BGA + Pin Qty + C or N + Pitch P + Ball Columns X Ball Rows _ Body Length X Body Width X Height BGA w/Dual Pitch.BGA + Pin Qty + C or N + Col Pitch X Row Pitch P + Ball Columns X Ball Rows _ Body Length X Body Width X Height BGA w/Staggered Pins..................BGAS + Pin Qty + C or N + Pitch P + Ball Columns X Ball Rows _ Body Length X Body Width X Height BGA Note: The C or N = Collapsing or Non-collapsing BallsCapacitors, Chip, Array, Concave..........................................................CAPCAV + Pitch P + Body Length X Body Width X Height - Pin Qty Capacitors, Chip, Array, Flat..................................................................CAPCAF + Pitch P + Body Length X Body Width X Height - Pin Qty Capacitors, Chip, Non-polarized.................................................................................................CAPC + Body Length + Body Width X Height Capacitors, Chip, Polarized.....................................................................................................CAPCP + Body Length + Body Width X Height Capacitors, Chip, Wire Rectangle........................................................................................CAPCWR + Body Length + Body Width X Height Capacitors, Molded, Non-polarized...........................................................................................CAPM + Body Length + Body Width X Height Capacitors, Molded, Polarized.................................................................................................CAPMP + Body Length + Body Width X Height Capacitors, Aluminum Electrolytic ............................................................................................................CAPAE + Base Body Size X Height Ceramic Flat Packages.....................................................................................................CFP127P + Lead Span Nominal X Height - Pin Qty Column Grid Array’s.....................................................CGA + Pitch P + Number of Pin Columns X Number of Pin Rows X Height - Pin Qty Crystals (2 leads)........................................................................................................................XTAL + Body Length X Body Width X Height Dual Flat No-lead..........................................................................................................DFN + Body Length X Body Width X Height – Pin Qty Diodes, Chip................................................................................................................................DIOC + Body Length + Body Width X Height Diodes, Molded...........................................................................................................................DIOM + Body Length + Body Width X Height Diodes, MELF................................................................................................................................DIOMELF + Body Length + Body Diameter Fuses, Molded............................................................................................................................FUSM + Body Length + Body Width X Height Inductors, Chip.............................................................................................................................INDC + Body Length + Body Width X Height Inductors, Molded........................................................................................................................INDM + Body Length + Body Width X Height Inductors, Precision Wire Wound................................................................................................INDP + Body Length + Body Width X Height Inductors, Chip, Array, Concave..............................................................INDCAV + Pitch P + Body Length X Body Width X Height - Pin Qty Inductors, Chip, Array, Flat......................................................................INDCAF + Pitch P + Body Length X Body Width X Height - Pin Qty Land Grid Array, Round Lead............................LGA + Pin Qty - Pitch P + Pin Columns X Pin Rows _ Body Length X Body Width X Height Land Grid Array, Square Lead........................LGAS + Pin Qty - Pitch P + Pin Columns X Pin Rows _ Body Length X Body Width X Height LED’s, Molded............................................................................................................................LEDM + Body Length + Body Width X Height Oscillators, Side Concave........................................................................OSCSC + Pitch P + Body Length X Body Width X Height - Pin Qty Oscillators, J-Lead.......................................................................................OSCJ + Pitch P + Body Length X Body Width X Height - Pin Qty Oscillators, L-Bend Lead.............................................................................OSCL + Pitch P + Body Length X Body Width X Height - Pin Qty Oscillators, Corner Concave....................................................................................................OSCCC + Body Length X Body Width X Height Plastic Leaded Chip Carriers..................................................PLCC + Pitch P + Lead Span L1 X Lead Span L2 Nominal X Height - Pin Qty Plastic Leaded Chip Carrier Sockets Square.......................PLCCS + Pitch P + Lead Span L1 X Lead Span L2 Nominal X Height - Pin Qty Quad Flat Packages..................................................................QFP + Pitch P + Lead Span L1 X Lead Span L2 Nominal X Height - Pin Qty Ceramic Quad Flat Packages.................................................CQFP + Pitch P + Lead Span L1 X Lead Span L2 Nominal X Height - Pin Qty Quad Flat No-lead................................................................QFN + Pitch P + Body Width X Body Length X Height - Pin Qty + Thermal Pad Pull-back Quad Flat No-lead..............................................PQFN + Pitch P + Body Width X Body Length X Height - Pin Qty + Thermal Pad Quad Leadless Ceramic Chip Carriers..........................................................LCC + Pitch P + Body Width X Body Length X Height - Pin Qty Quad Leadless Ceramic Chip Carriers (Pin 1 on Side)...............................LCCS + Pitch P + Body Width X Body Length X Height - Pin Qty Resistors, Chip...........................................................................................................................RESC + Body Length + Body Width X Height Resistors, Molded......................................................................................................................RESM + Body Length + Body Width X Height Resistors, MELF...........................................................................................................................RESMELF + Body Length + Body Diameter Resistors, Chip, Array, Concave............................................................RESCAV + Pitch P + Body Length X Body Width X Height - Pin Qty Resistors, Chip, Array, Convex, E-Version (Even Pin Size)...............RESCAXE + Pitch P + Body Length X Body Width X Height - Pin Qty Resistors, Chip, Array, Convex, S-Version (Side Pins Diff)................RESCAXS + Pitch P + Body Length X Body Width X Height - Pin Qty Resistors, Chip, Array, Flat.....................................................................RESCAF + Pitch P + Body Length X Body Width X Height - Pin Qty Small Outline Diodes, Flat Lead...................................................................................SODFL + Lead Span Nominal + Body Width X Height Small Outline IC, J-Leaded........................................................................................SOJ + Pitch P +Lead Span Nominal X Height - Pin Qty Small Outline Integrated Circuit, (50 mil Pitch SOIC)......................................................SOIC127P +Lead Span Nominal X Height - Pin Qty Small Outline Packages............................................................................................SOP + Pitch P +Lead Span Nominal X Height - Pin Qty Small Outline No-lead...........................................................SON + Pitch P + Body Width X Body Length X Height - Pin Qty + Thermal Pad Pull-back Small Outline No-lead.........................................PSON + Pitch P + Body Width X Body Length X Height - Pin Qty + Thermal Pad Small Outline Transistors, Flat Lead....................................................................SOTFL + Pitch P + Lead Span Nominal X Height - Pin Qty SOD (Example: SOD3717X135 = JEDEC SOD123)........................................................SOD + Lead Span Nominal + Body Width X Height SOT89 (JEDEC Standard Package).......................................................................................................................................................SOT89 SOT143 & SOT343 (JEDEC Standard Package)..............................................................................................................SOT143 & SOT343 SOT143 & SOT343 Reverse (JEDEC Standard Package)...........................................................................................SOT143R & SOT343R SOT23 & SOT223 Packages (Example: SOT230P700X180-4)...............................SOT + Pitch P + Lead Span Nominal X Height - Pin Qty TO (Generic DPAK - Example: TO228P970X238-3).................................................................TO + Pitch P + Lead Span X Height - Pin QtyI P C-7351B L a n d P a t t e r n N a m i n g C o n v e n t i o n N o t e s•All dimensions are in Metric Units•All Lead Span and Height numbers go two places past the decimal point and “include” trailing Zeros•All Lead Span and Body Sizes go two place before the decimal point and “remove” leading Zeros•All Chip Component Body Sizes are one place to each side of the decimal point•Pitch Values are two places to the right & left of decimal point with no leading Zeros but include trailing zeros N a m i n g C o n v e n t i o n S p e c i a l C h a r a c t e r U s e f o r L a n d P a t t e r n sThe _ (underscore) is the separator between pin Qty in Hidden & Deleted pin componentsThe – (dash) is used to separate the pin qty.The X (capital letter X) is used instead of the word “by” to separate two numbers such as height X width like “Quad Packages”.P C B L i b r a r i e s S u f f i x N a m i n g C o n v e n t i o n f o r L a n d P a t t e r n sCommon SMT Land Pattern to Describe Environment Use (This is the last character in every name)Note: This excludes the BGA component family as they only come in the Nominal Environment Condition •M.................Most Material Condition (Level A)•N..................Nominal Material Condition (Level B)•L.................Least Material Condition (Level C)Alternate Components that do not follow the JEDEC, EIA or IEC Standard•A..................Alternate Component (used primarily for SOP & QFP when Component Tolerance or Height is different) •B..................Second Alternate ComponentReverse Pin Order•-20RN..........20 pin part, Reverse Pin Order, Nominal EnvironmentHidden Pins•-20_24N......20 pin part in a 24 pin package. The pins are numbered 1 – 24 the hidden pins are skipped. The schematic symbol displays up to 24 pins.Deleted Pins•-24_20N......20 pin part in a 24 pin package. The pins are numbered 1 – 20. The schematic symbol displays 20 pins. JEDEC and EIA Standard parts that have several alternate packages•AA, AB, AC.JEDEC or EIA Component IdentifierGENERAL SUFFIXES_HS.........................HS = Land Pattern with Heat Sink attachment requiring additional holes or padsExample: TO254P1055X160_HS-6N_BEC......................BEC = Base, Emitter and Collector (Pin assignments used for three pin Transistors)Example: SOT95P280X160_BEC-3N_SGD......................SGD = Source, Gate and Drain (Pin assignments used for three pin Transistors)Example: SOT95P280X160_SGD-3N_213........................213 = Alternate pin assignments used for three pin TransistorsExample: SOT95P280X160_213-3NP C B L i b r a r i e s N a m i n g C o n v e n t i o n f o r N o n-S t a n d a r d S M T L a n d P a t t e r n s Surface Mount Land PatternsComponent, Category Land Pattern Name Amplifiers....................................................................................................................................................AMP_ Mfr.’s Part Number Batteries......................................................................................................................................................BAT_ Mfr.’s Part Number Capacitors, Variable..................................................................................................................................CAPV_Mfr.’s Part Number Capacitors, Chip, Array, Concave (Pins on 2 or 4 sides)..............................................................CAPCAV_Mfr Series No. - Pin Qty Capacitors, Chip, Array, Flat (Pins on 2 sides)..............................................................................CAPCAF_Mfr Series No. - Pin Qty Capacitors, Miscellaneous............................................................................................................................CAP_Mfr.’s Part Number Crystals......................................................................................................................................................XTAL_Mfr.’s Part Number Diodes, Miscellaneous...................................................................................................................................DIO_Mfr.’s Part Number Diodes, Bridge Rectifiers............................................................................................................................DIOB_Mfr.’s Part Number Ferrite Beads..................................................................................................................................................FB_Mfr.’s Part Number Fiducials......................................................................................................................................FID + Pad Size X Solder Mask Size Filters..............................................................................................................................................................FIL_Mfr.’s Part Number Fuses..........................................................................................................................................................FUSE_Mfr.’s Part Number Fuse, Resettable.....................................................................................................................................FUSER_Mfr.’s Part Number Inductors, Miscellaneous...............................................................................................................................IND_Mfr.’s Part Number Inductors, Chip, Array, Concave (Pins on 2 or 4 sides)..................................................................INDCAV_Mfr Series No. - Pin Qty Inductors, Chip, Array, Flat (Pins on 2 sides).................................................................................INDCAF_Mfr Series No. - Pin Qty Keypad.................................................................................................................................................KEYPAD_Mfr.’s Part Number LEDS............................................................................................................................................................LED_Mfr.’s Part Number LEDS, Chip...................................................................................................................................................LED_Mfr.’s Part Number Liquid Crystal Display...................................................................................................................................LCD_Mfr.’s Part Number Microphones..................................................................................................................................................MIC_Mfr.’s Part Number Opto Isolators............................................................................................................................................OPTO_Mfr.’s Part Number Oscillators......................................................................................................................................OSC_Mfr.’s Part Number - Pin Qty Quad Flat Packages w/Bumper Corners, Pin 1 Side.............BQFP + Pitch P + Lead Span L1 X Lead Span L2 Nominal X Height - Pin Qty Quad Flat Packages w/Bumper Corners, 1 Center..............BQFPC + Pitch P + Lead Span L1 X Lead Span L2 Nominal X Height - Pin Qty Resistors, Chip, Array, Concave (Pins on 2 or 4 sides).................................................................RESCAV_Mfr Series No. - Pin Qty Resistors, Chip, Array, Convex Type E (Pins on 2 sides)...........................................................RESCAXE_Mfr Series No. - Pin Qty Resistors, Chip, Array, Convex Type S (Pins on 2 sides)...........................................................RESCAXS_Mfr Series No. - Pin Qty Resistors, Chip, Array, Flat (Pins on 2 sides)................................................................................RESCAF_Mfr Series No. - Pin Qty Relays.....................................................................................................................................................RELAY_Mfr.’s Part Number Speakers....................................................................................................................................................SPKR_Mfr’s Part Number Switches........................................................................................................................................................SW_Mfr.’s Part Number Test Points, Round......................TP + Pad Size (1 place left of decimal and 2 places right of decimal, Example TP100 = 1.00mm) Test Points, Square...............................................................TPS + Pad Size (1 place left of decimal and 2 places right of decimal) Test Points, Rectangle....................................TP + Pad Length X Pad Width (1 place left of decimal and 2 places right of decimal) Thermistors.............................................................................................................................................THERM_Mfr.’s Part Number Transceivers.............................................................................................................................................XCVR_ Mfr.’s Part Number Transducers (IRDA’s)................................................................................................................................XDCR_Mfr.’s Part Number Transient Voltage S_Mfr.’s Part Number Transient Voltage Suppressors, SP_Mfr.’s Part Number Transistor Outlines, Custom....................................................................................................................TRANS_Mfr.’s Part Number Transformers.............................................................................................................................................XFMR_Mfr.’s Part Number Trimmers & Potentiometers........................................................................................................................TRIM_Mfr.’s Part Number Tuners.....................................................................................................................................................TUNER_Mfr.’s Part Number Varistors.......................................................................................................................................................VAR_Mfr.’s Part Number Voltage Controlled Oscillators.....................................................................................................................VCO_Mfr.’s Part Number Voltage Regulators, Custom......................................................................................................................VREG_Mfr.’s Part NumberI P C-7251N a m i n g C o n v e n t i o n f o r T h r o u g h-H o l e L a n d P a t t e r n sThe land pattern naming convention uses component dimensions to derive the land pattern name.The first 3 – 6 characters in the land pattern name describe the component family.The first number in the land pattern name refers to the Lead Spacing or hole to hole location to insert the component lead.All numbers that follow the Lead Spacing are component dimensions.These characters are used as component body identifiers that precede the value and this is the priority order of the component body identifiers –P = Pitch for components with more than two leadsW = Maximum Lead Width (or Component Lead Diameter)L = Body Length for horizontal mountingD = Body Diameter for round component bodyT = Body Thickness for rectangular component bodyH = Height for vertically mounted componentsQ = Pin Quantity for components with more than two leadsR = Number of Rows for connectorsA, B & C = the fabrication complexity level as defined in the IPC-2221 and IPC-2222Notes:All component body values are in millimeters and go two places to the right of the decimal point and no leading zeros.All Complexity Levels used in the examples are “B”.Component, Category Land Pattern Name Capacitors, Non Polarized Axial Diameter Horizontal Mounting.........CAPAD + Lead Spacing + W Lead Width + L Body Length + D Body Diameter Example: CAPAD800W52L600D150BCapacitors, Non Polarized Axial Diameter; Lead Spacing 8.00; Lead Width 0.52; Body Length 6.00; Body Diameter 1.50Capacitors, Non Polarized Axial Rectangular.........CAPAR + Lead Spacing + W Lead Width + L Body Length + T Body thickness + H Body Height Example: CAPAR800W52L600T50H70BCapacitors, Non Polarized Axial; Lead Spacing 8.00; Lead Width 0.52; Body Length 6.00; Body Thickness 0.50; Body Height 0.70Capacitors, Non Polarized Axial Diameter Vertical Mounting .........CAPADV + Lead Spacing + W Lead Width + L Body Length + D Body Diameter Example: CAPADV300W52L600D150BCapacitors, Non Polarized Axial; Lead Spacing 3.00; Lead Width 0.52; Body Length 6.00; Body Diameter 1.50mmCapacitors, Non Polarized Axial Rect. Vert. Mtg.CAPARV + Lead Spacing + W Lead Width + L Body Length + T Body Thickness + H Body Height Example: CAPARV300W52L600T50H70BCapacitors, Non Polarized Axial Rect. Vertical; Lead Spacing 8.00; Lead Width 0.52; Body Length 6.00; Body Thickness 0.50; Body Height 0.70 Capacitors, Non Polarized Radial Diameter.......................................CAPRD + Lead Spacing + W Lead Width + D Body Diameter + H Body Height Example: CAPRD200W52D300H550BCapacitors, Non Polarized Radial Diameter; lead spacing 2.00; lead width 0.52; Body Diameter 3.00; Height 5.50Capacitors, Non Polarized Radial Rectangular.......CAPRR + Lead Spacing + W Lead Width + L Body Length + T Body thickness + H Body Height Example: CAPRR200W52L50T70H550BCapacitors, Non Polarized Radial Rectangular; lead spacing 2.00; lead width 0.52; Body Length 0.50; Body thickness 0.70; Height 5.50 Capacitors, Non Polarized Radial Disk Button........CAPRB + Lead Spacing + W Lead Width + L Body Length + T Body thickness + H Body Height Example: CAPRB200W52L50T70H550BCapacitors, Non Polarized Radial Rectangular; lead spacing 2.00; lead width 0.52; Body Length 0.50; Body thickness 0.70; Height 5.50 Capacitors, Polarized Axial Diameter Horizontal Mounting................CAPPA + Lead Spacing + W Lead Width + L Body Length + D Body Diameter Example: CAPPAD800W52L600D150BCapacitors, Polarized Axial Diameter; Lead Spacing 8.00; Lead Width 0.52; Body Length 6.00; Body Diameter 1.50Capacitor, Polarized Radial Diameter.................................................CAPPR + Lead Spacing + W Lead Width + D Body Diameter + H Body Height Example: CAPPRD200W52D300H550BCapacitors, Polarized Radial Diameter; lead spacing 2.00; lead width 0.52; Body Diameter 3.00; Height 5.50Diodes, Axial Diameter Horizontal Mounting.......................................DIOAD + Lead Spacing + W Lead Width + L Body Length + D Body Diameter Example: DIOAD800W52L600D150BCapacitors, Non Polarized Axial Diameter; Lead Spacing 8.00; Lead Width 0.52; Body Length 6.00; Body Diameter 1.50Diodes, Axial Diameter Vertical Mounting .........................................DIOADV + Lead Spacing + W Lead Width + L Body Length + D Body Diameter Example: DIOADV300W52L600D150BCapacitors, Non Polarized Axial; Lead Spacing 8.00; Lead Width 0.52; Body Length 6.00; Body Diameter 1.50Dual-In-Line Packages...................................DIP + Lead Span + W Lead Width + P Pin Pitch + L Body Length + H Component Height + Q Pin Qty Example: DIP762W52P254L1905H508Q14BDual-In-Line Package: Lead Span 7.62; Lead Width 0.52; Pin Pitch 2.54; Body Length 19.05; Body Height 5.08; Pin Qty 14Component, Category Land Pattern Name Dual-In-Line Sockets....................................DIPS + Lead Span + W Lead Width + P Pin Pitch + L Body Length + H Component Height + Q Pin Qty Example: DIPS762W52P254L1905H508Q14BDual-In-Line Package Socket: Lead Span 7.62; Lead Width 0.52; Pin Pitch 2.54; Body Length 19.05; Body Height 5.08; Pin Qty 14Headers, Vertical....... HDRV + Lead Span + W Lead Width + P Pin Pitch + R Pins per Row + L Body Length + T Body Thickness + H Component HeightExample: HDRV200W52P200R2L4400T400H900BHeader, Vertical: Lead Span 2.00; Lead Width 0.52; Pin Pitch 2.00; 2 Rows; Body Length 44.00; Body Thickness 4.00; Body Height 9.00 Headers, Right Angle...............HDRRA + Lead Span + W Lead Width + P Pin Pitch + R Pins per Row + L Body Length + T Body Thickness + H Component HeightExample: HDRRA200W52P200R2L4400T400H900BHeader, Vertical: Lead Span 2.00; Lead Width 0.52; Pin Pitch 2.00; 2 Rows; Body Length 44.00; Body Thickness 4.00; Body Height 9.00 Inductors, Axial Diameter Horizontal Mounting....................................INDAD + Lead Spacing + W Lead Width + L Body Length + D Body Diameter Example: INDAD800W52L600D150BInductors, Axial Diameter; Lead Spacing 8.00; Lead Width 0.52; Body Length 6.00; Body Diameter 1.50Inductors, Axial Diameter Vertical Mounting .....................................INDADV + Lead Spacing + W Lead Width + L Body Length + D Body Diameter Example: INDADV300W52L600D150BInductors, Axial Diameter Vertical Mounting; Lead Spacing 3.00; Lead Width 0.52; Body Length 6.00; Body Diameter 1.50Jumpers, Wire...................................................................................................................................................JUMP + Lead Spacing + W Lead Width Example: JUMP500W52BJumper; Lead Spacing 5.00; Lead Width 0.52Mounting Holes Plated With Support Pad..........................................................................MTGP + Pad Size + H Hole Size + Z Inner Layer Pad Size Example: MTGP700H400Z520This is a Mounting hole for a #6-32 screw using a circular 7.00 land on the primary and secondary side of the board, a 4.00 diameter hole with the internal lands are smaller that the external and are also circular 5.20 in diameter.Mounting Holes Non-Plated With Support Pad................................................................MTGNP + Pad Size + H Hole Size + Z Inner Layer Pad Size Example: MTGNP700H400Z520This is a Mounting hole for a #6-32 screw using a circular 7.00 land on the primary and secondary side of the board, a 4.00 diameter hole with the internal lands are smaller that the external and are also circular 5.20 in diameter.Mounting Holes Non-Plated Without Support Pad.....................MTGNP + Pad Size + H Hole Size + Z Inner Layer Pad Size + K Keep-out Diameter Example: MTGNP100H400Z520K700This is a Mounting hole for a #6-32 screw using a circular 1mm land on the primary and secondary side of the board, a 4.00 diameter hole with the internal lands are smaller that the external and are also circular 5.20 in diameter and a 7.00 diameter keep-out.Mounting Holes Plated with 8 Vias .....................................................................MTGP + Pad Size + H Hole Size + Z Inner Layer Pad Size + 8 Vias Example: MTGP700H400Z520V8This is a Mounting hole for a #6-32 screw using a circular 7mm land on the primary and secondary side of the board, a 4mm diameter hole with the internal lands are smaller that the external and are also circular 5.2mm in diameter, with 8 vias.Pin Grid Array’s.............................PGA + Pin Qty + P Pitch + C Pin Columns + R Pin Rows + L Body Length X Body Width + H Component Height Example: PGA84P254C10R10L2500X2500H300BPin Grid Array: Pin Qty 84; Pin Pitch 2.54; Columns 10; Rows 10; Body Length 25.00 X 25.00; Component Height 3.00Resistors, Axial Diameter Horizontal Mounting...................................RESAD + Lead Spacing + W Lead Width + L Body Length + D Body Diameter Example: RESAD800W52L600D150BResistors, Axial Diameter; Lead Spacing 8.00; Lead Width 0.52; Body Length 6.00; Body Diameter 1.50Resistors, Axial Diameter Vertical Mounting ....................................RESADV + Lead Spacing + W Lead Width + L Body Length + D Body Diameter Example: RESADV300W52L600D150BResistors, Axial Diameter Vertical Mounting; Lead Spacing 3.00; Lead Width 0.52; Body Length 6.00; Body Diameter 1.50Resistors, Axial Rectangular Horizontal Mounting...RESAR + Lead Spacing + W Lead Width + L Body Length + T Body thickness + H Body Height Example: RESAR800W52L600T50H70BResistors, Axial Rectangular; Lead Spacing 8.00; Lead Width 0.52; Body Length 6.00; Body Thickness 0.50; Body Height 0.70Test Points, Round Land......................................................................................................................................................................TP + Lead Width Example: TP52Test Points, Square Land..................................................................................................................................................................TPS + Lead Width Example: TPS52Test Points, Top Land Round & Bottom Land Square.....................................................................................................................TPRS + Lead Width Example: TPRS52 Wire....................................................................................................................................................................................................PAD + Wire Width Example: PAD52。

牧丹的自述400字作文(用第一人称)

牧丹的自述400字作文(用第一人称)

牧丹的自述400字作文(用第一人称)I am a simple shepherdess living in the vast grasslands of Inner Mongolia. 我是内蒙古广袤草原上的一名普通牧羊女。

Life on the grassland is tough, but it is also rewarding. 草原上的生活艰苦,但也很有回报。

I have always felt a deep connection to the land and the animals that roam freely upon it. 我一直觉得与这片土地以及在其上自由漫游的动物有着深厚的联系。

Every day, I wake up with the sun and set out to tend to my flock of sheep. 每天,我跟着太阳起床,出发去照料我的羊群。

I take pride in my work and care for each and every one of my animals as if they were my own family. 我为我的工作感到自豪,像对待家人一样照顾着每一只动物。

The bond between a shepherdess and her sheep is a special one, built on trust and mutual respect. 牧羊女与羊群之间的关系是一种特殊的纽带,建立在信任和相互尊重的基础上。

As the seasons change, so does the landscape of the grassland. 随着季节的更迭,草原的风景也在变化。

From lush green pastures in the summer to snow-covered plains in the winter, each season brings its own challenges and beauty. 从夏天郁郁葱葱的绿草地到冬天白雪皑皑的平原,每个季节都带来了各自的挑战和美丽。

双语安徒生童话:theShepherdessandtheSweep牧羊女和扫烟囱的人

双语安徒生童话:theShepherdessandtheSweep牧羊女和扫烟囱的人

双语安徒生童话:theShepherdessandtheSweep牧羊女和扫烟囱的人“Now we are in the chimney,” said he; “and look, there is a beautiful star shining aboveit.” It was a real star shining down upon them as if it would show them the way. So theyclambered, and crept on, and a frightful steep place it was; but the chimney-sweep helpedher and supported her, till they got higher and higher. He showed her the best places onwhich to set her little china foot, so at last they reached the top of the chimney, and satthemselves down, for they were very tired,as may be supposed. The sky, with all its stars,was over their heads, and below were the roofs of the town. They could see for a very longdistance out into the wide world, and the poor little shepherdess leaned her head on herchimney-sweep's shoulder,and wept till she washed the gilt off her sash; the world was sodifferent to what she expected. “This is too much,” she said; “I cannot bear it, the world istoo large. Oh, I wish I were safe back on the table. again, under the looking glass; I shallnever be happy till I am safe back again. Now I have followed you out into the wide world, youwill take me back, if you love me.”then the chimney-sweep tried to reason with her,and spoke of the old Chinaman,andof the Major-general-field-sergeant-commander Billy-goat's legs; but she sobbed sobitterly,and kissed her little chimney-sweep till he was obliged to do all she asked,foolish asit was. And so,with a GREat deal of trouble,they climbed down the chimney,and thencrept through the pipe and stove,which were certainly not very pleasant places. Then theystood in the dark fire-box,andlistened behind the door, to hear what was going on in theroom. As it was all quiet,they peeped out. Alas! there lay the old Chinaman on the floor; hehad fallen down from the table as he attempted to run after them, and was broken into threepieces; his back had separated entirely, and his head had rolled into a corner of the room.The major-general stood in his old place,and appeared lost in thought.“This is terrible,” said the little shepherdess. “My poor old grandfather is broken topieces,and it is our fault. I shall never live after this;” and she wrung her little hands.“He can be riveted,” said the chimney-sweep; “he can be riveted. Do not be so hasty. Ifthey cement his back, and put a good rivet in it, he will be as good as new, and be able tosay as many disaGREeable things to us as ever.”“Do you think so?” said she; and then they climbed up to the table, and stood in theirold places.“As we have done no good,” said the chimney-sweep,“we might as well have remainedhere,instead of taking so much trouble.”“I wish grandfather was riveted,” said the shepherdess. “Will it cost much,I wonder?”And she had her wish. the family had the Chinaman's back mended, and a strong rivet putthrough his neck; he looked as good as new, but he could no longer nod his head.“You have become proud since your fall broke you to pieces,” said Major-general-field-sergeant-commander Billy-goat's-legs. “You have no reason to give yourself such airs. Am Ito have her or not?”the chimney-sweep and the little shepherdess looked piteously at the old Chinaman,forthey were afraid he mightnod; but he was not able:besides,it was so tiresome to bealways telling strangers he had a rivet in the back of his neck.And so the little china people remained together, and were glad of the grandfather'srivet, and continued to love each other till they were broken to pieces.你曾经看到过一个老木碗柜没有?它老得有些发黑了。

浴巾架说明书

浴巾架说明书

1. Remove contents from box. Depress brass push pins and insert bucket frame section into first arm. The push pins will snap into place when frame in securely in place.Note: Make sure the back of the bucket frame (the side with the back rest receptacles) corresponds to the back of the armrest section.2.Repeat for second arm section.3. Insert backrest into backrest receptacles in commode bucket frame. The brass push pins willsnap into place when secure. 4. Align the padded toilet seat clamps onto the back frame rail. (Both clamps should sit outside the pail brackets). Push down on seat until clamps snap firmly into place. T o remove, grasp the back of theseat and lift.5. Install commode bucket by dropping into bucket frame. Reverse to remove.1. Before use, adjust height of each leg to your specific needs, making sure all legs are at the same height. When desired height is reached, lock legs into place by aligning buttons into proper holes, per illustration above.2. T o be sure legs are locked into place by pushingdown on or by pulling legs. 1. T oilet seat must be in down position before use. Failure to do so may result in breakage of commode and possible injury. 2. Do NOT install commode without first reading and understanding this assembly and instruction sheet. If you can not understand these instructions, contact a healthcare, dealer or technical professional before attempting to install. Otherwise, injury or damage may occur. 3. Inspect all parts for shipping damage before assembly. If there is shipping damage - DO NOT USE. Contact dealer/carrier for further instructions. 4. Make certain that the height adjusting snap buttons fully protrude through the same respective hole of each leg extension. This will ensure that the leg extensions are securely locked in position and an even height is achieved (see Figure 1). 5. Ensure ALL screws, nuts and/or bolts are tightened. 6. Check the rubber tips on the leg extensions for rips, wear or if they are are missing. Immediately replace any or all if any of these imperfections exist. 7. All four leg extensions with rubber tips MUST touch the floor simultaneously at all times. 8. Users with limited physical strength should be supervised or assisted while using commode.。

KA波导滤波器设计

KA波导滤波器设计

*基金项目:广东省引进创新创业团队项目“Ku/Ka双频段卫星通信收发信机及产业化”(201301D014)收稿日期:2018-03-05KA波导滤波器设计*Design of Ka-Band Waveguide Filter介绍了一种波导E 面膜片的带通滤波器,对这种滤波器进行了理论分析,采用高精度三维电磁场分析软件对电感膜片建模,并与等效电路相结合,设计了Ka 波段频带范围为29.5 GHz —30 GHz 以及27 GHz —29 GHz 两款波导带通滤波器,利用HFSS 进行仿真,给出滤波器的测试结果,测试结果和仿真结果基本吻合,允许较大范围的实际加工误差,验证了该设计的可行性和鲁棒性。

矩形波导;E 面膜片;带通滤波器A waveguide E-plane diaphragm band-pass fi lter is introduced and analyzed theoretically. The high-accuracy 3-D electromagnetic fi eld analysis software is used to model inductance diaphragm. Combined with equivalent circuit, two Ka-band waveguide band-pass fi lter prototypes at Ka bands of 29.5 GHz—30 GHz and 27 GHz—29 GHz. High Frequency Structure Simulator (HFSS) software is used to simulate and present the tested results. The results are consistent with the simulation results, which allow relatively large machining errors, and verify the feasibility and robustness of the design.rectangular waveguide; E-plane diaphragm; band-pass fi lter(1.广州程星通信科技有限公司,广东 广州 510663;2.广州海格通信集团股份有限公司,广东 广州 510663)(1. Guangzhou Starway Communications Inc., Guangzhou 510663, China;2. Guangzhou Haige Communications Group Inc., Guangzhou 510663, China)【摘 要】【关键词】贾鹏程1,王崇军2,朱淇锐1JIA Pengcheng 1, WANG Congjun 2, ZHU Qirui 1[Abstract][Key words]1 引言随着现代毫米波集成电路的发展,对结构简单、性能高、易于大批量生产的带通滤波器提出了更高的要求。

hfss扫频设置

hfss扫频设置

HFSS中的扫频分析类型文章来源: 微波EDA网HFSS中有3种扫频类型,分别为快速扫频(Fast Frequency Sweep)、离散扫频(Discrete Frequency Sweep)和插值扫频(Interpolating Frequency Sweep)。

1.快速扫频快速扫频在1994年引入HFSS中,最初是基于AWE(Asymptotic Waveform Evaluation)算法用于搜寻传输函数的主零、极点,适合于窄带问题的求解;后来采用ALPS (Adaptive Lanczos-Pade Sweep)算法,Lanczos法是有效求解稀疏矩阵本征值问题的方法,采用ALPS算法可以在很宽的频带范围内搜寻出传输函数的全部零、极点。

因此,快速扫频适用于谐振问题和高Q值问题的分析,可以得到场在谐振点附近行为的精确描述。

使用快速扫频,一般选择频带中心频率作为自适应网格剖分频率,进行网格剖分,计算出该频点的S参数和场分布,然后使用基于ALPS算法的求解器从中心频率处的S参数解和场解来外推整个频带范围的S参数解和场解。

使用快速扫频,计算时只会求解中心频点处的场解,但在数据后处理时整个扫频范围内的任意频点的场都可以显示。

2.离散扫频离散扫频是在频带内的指定频点处计算S参数和场解。

例如,指定频带范围为1~2GHz、步长为0.25GHz,则会计算在1GHz、1.25GHz、1.5GHz、1.75GHz、2GHz 频点处的S参数和场解。

默认情况下,使用离散扫频只保存最后计算的频率点的场解,上例中即只保存2GHz处的场解。

用户如果希望保存指定的所有频率点的场解,需要选中设置对话框中的Save Fields复选框。

对于离散扫频,需要求解的频率点越多,完成频率扫描所需的时间越长。

如果频带范围的解只需要有限几个频率点就能精确表示,可以选择离散扫频。

3.插值扫频插值扫频使用二分法来计算整个频段内的S参数和场解。

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/原典英语论坛欢迎您来探讨孩子的英语学习,与您的孩子一起进步成长!Hans Christian AnderseAndersen n The Shepherdess and the SweepHave you ever seen a very old chest,black with age,and covered with outlandish carved ornaments and curling leaves?Well,in a certain parlor there was just such a chest,handed down from somegreat-grandmother.Carved all up and down it,ran tulips and roses, odd-looking flourishes,and from fanciful thickets little stags stuck out their antlered heads.Right in the middle of the chest a whole man was carved.He would make you laugh to look at him grinning away,though one couldn’t call his grinning laughing.He had hind legs like a goat’s,a little horn on his forehead,and a long beard.All his children called him“General Headquarters-Hindquarters-Gives-Orders-Front-and-Rear-Sergeant-Bill ygoat-Legs.”It was a difficult name to pronounce and not many people get to be called by it,but he must have been very important or why should anyone have taken trouble to carve him at all?However,there he stood,forever eyeing a delightful little chinashepherdess on the table top under the mirror.The little shepherdess wore golden shoes,and looped up her gown fetchingly with a red rose. Her hat was gold,and even her crook was gold.She was simply charming!Close by her stood a little chimney-sweep,as black as coal,but made of porcelain too.He was as clean and tidy as anyone can be,because you see he was only an ornamental chimney-sweep.If the china-makers had wanted to,they could just as easily have turned him out as a prince, for he had a jaunty way of holding his ladder,and his cheeks were as pink as a girl’s.That was a mistake,don’t you think?He should have been dabbed with a pinch or two of soot.He and the shepherdess stood quite close together.They had both been put on the table where they stood and,having been placed there, they had become engaged because they suited each other exactly. Both were young,both were made of the same porcelain,and neither could stand a shock.Near them stood another figure,three times as big as they were.It was an old Chinaman who could nod his head.He too was made of porcelain,and he said he was the little shepherdess’s grandfather.But he couldn’t prove it.Nevertheless he claimed that this gave him authority over her,and whenGeneral-Headquarters-Hindquarters-Gives-Orders-Front-and-Rear-Ser geant-Billygoat-Legs asked for her hand in marriage,the old Chinaman had nodded consent.“There’s a husband for you!”the old Chinaman told the shepherdess.“A husband who,I am inclined to believe,is made of mahogany.He can make you Mrs.General-Headquarters-Hindquarters-Gives-Orders-Front-and-Rear-Ser geant-Billygoat-Legs.He has the whole chest full of silver,and who knows what else he’s got hidden away in his secret drawers?”“But I don’t want to go and live in the dark chest,”said the little shepherdess.“I have heard people say he’s got eleven china wives in there already.”“Then you will make twelve,”said the Chinaman.“Tonight,as soon as the old chest commences to creak I’ll marry you off to him,as sure as I’m a Chinaman.”Then he nodded off to sleep.The little shepherdess cried and looked at her true love,the porcelain chimney-sweep.“Please let’s run away into the big,wide world,”she begged him,“for we can’t stay here.”“I’ll do just what you want me to,”the little chimney-sweep told her.“Let’s run away right now.I feel sure I can support you bychimney-sweeping.”“I wish we were safely down off this table,”she said.“I’ll never be happy until we are out in the big,wide world.”He told her not to worry,and showed her how to drop her little feet over the table edge,and how to step from one gilded leaf to another down the carved leg of the table.He set up his ladder to help her,and down they came safely to the floor.But when they glanced at the old chest they saw a great commotion.All the carved stags were craning their necks,tossing their antlers,and turning their heads.General-Headquarters-Hindquarters-Gives-Orders-Front-and-Rear-Sergeant-Billygoat-Legs jumped high in the air,and shouted to the old Chinaman,“They’re running away!They’re running away!”This frightened them so that they jumped quickly into a drawer of the window-seat.Here they found three or four decks of cards,not quite complete,and a little puppet theatre,which was set up as well as it was possible to do.A play was in progress,and all the diamond queens, heart queens,club queens,and spade queens sat in front row and fanned themselves with the tulips they held in their hands.Behind them the knaves lined up,showing that they had heads both at the top and at the bottom,as face cards do have.The play was all about two people, who were not allowed to marry,and it made the shepherdess crybecause it was so like her own story.“I can’t bear to see any more,”she said.“I must get out of this drawer at once.”But when they got back to the floor and looked up at the table, they saw the old Chinaman was wide awake now.Not only his head,but his whole body rocked forward.The lower part of his body was one solid piece,you see.“The old Chainman’s coming!”cried the little Shepherdess,who was so upset that she fell down on her porcelain knees.“I have an idea,”said the chimney-sweeper.“We’ll hide in the pot-pourri vase in the corner.There we can rest upon rose petals and lavender, and when he finds us we can throw salt in his eyes.”“It’s no use,”she said.“Besides,I know the pot-pourri vase was once the old Chainman’s sweetheart,and where there used to be love a little affection is sure to remain.No,there’s nothing for us to do but to run away into the big wide world.”“Are you really so brave that you’d go into the wide world with me?”asked the chimney-sweep.“Have you thought about how big it is,and that we can never come back here?”“I have,”she said.The chimney-sweep looked her straight in the face and said,“My way lies up through the chimney.Are you really so brave that you’ll come with me into the stove,and crawl through the stovepipe?It will take us to the chimney.Once we get there,I’ll know what to do.We shall climb so high that they’ll never catch us,and at the very top there’s an opening into the big wide world.”He led her to the stove door.“It looks very black in there,”she said.But she let him lead her through the stove and through the stovepipe,where it was pitch-black night.“Now we’ve come to the chimney,”he said.“And see!See how the bright star shines over our heads.”A real star,high up in the heavens,shone down as if it wished to show them the way.They clambered and scuffled,for it was hard climbing and terribly steep-way,way up high!But he lifted her up,held her safe,and found the best places for her little porcelain feet.At last they reached the top of the chimney,where they sat down.For they were so tired,and no wonder!Overhead was the starry sky,and spread before them were all the housetops in the town.They looked out on the big wide world.The poor shepherdess had never thought it would be like that.She flung her littlehead against the chimney-sweep,and sobbed so many tears that the gilt washed off her sash.“This is too much,”she said.“I can’t bear it.The wide world is too big. Oh!If I only were back on my table under the mirror.I’ll never be happy until I stand there again,just as before.I followed you faithfully out into the world,and if you love me the least bit you’ll take me right home.”The chimney-sweep tried to persuade her that it wasn’t sensible to go back.He talked to her about the old Chinaman,and ofGeneral-Headquarters-Hindquarters-Gives-Orders-Front-and-Rear-Ser geant-Billygoat-Legs,but she sobbed so hard and kissed herchimney-sweep so much that he had to do as she said,though he thought it was the wrong thing to do.So back down the chimney they climbed with great difficulty,and they crawled through the wretched stovepipe into the dark stove.Here they listened behind the door,to find out what was happening in the room. Everything seemed quiet,so they opened the door and-oh,what a pity! There on the floor lay the Chinaman,in three pieces.When he had come running after them,he tumbled off the table and smashed.His whole back had come off in one piece,and his head had rolled into the corner.General-Headquarters-Hindquarters-Gives-Orders-Front-and-Rear-Sergeant-Billygoat-Legs was standing where he always stood,looking thoughtful.“Oh,dear,”said the little shepherdess,“poor old grandfather is all broken up,and it’s entirely our fault.I shall never live through it.”She wrung her delicate hands.“He can be patched,”said the chimney-sweep.“He can be riveted.Don’t be so upset about him.A little glue for his back and a strong rivet in his neck,and he will be just as good as new,and just as disagreeable as he was before.”“Will he,really?”she asked,as they climbed back to their old place on the table.“Here we are,”said the chimney-sweep.“Back where we started from. We could have saved ourselves a lot of trouble.”“Now if only old grandfather were mended,”said the little shepherdess.“Is mending terribly expensive?”He was mended well enough.The family had his back glued together, and a strong rivet put through his neck.That made him as good as new, except that never again could he nod his head.“It seems to me that you have grown haughty since your fall,though Idon’t see why you should be proud of it,”General-Headquarters-Hindquarters-Gives-Orders-Front-and-Rear-Ser geant-Billygoat-Legs complained.“Am I to have her,or am I not?”The chimney-sweep and the little shepherdess looked so pleadingly at the old Chinaman,for they were deathly afraid he would nod.But he didn’t.He couldn’t.And neither did he care to tell anyone that,forever and a day,he’d have to wear a rivet in his neck.So the little porcelain people remained together.They thanked goodness for the rivet in grandfather’s neck,and they kept on loving each other until the day they broke.。

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