PE1-U4-W

合集下载

加工中心电路图(西门子)

EPLAN 828D加工中心
替换替换人
corinco
主电路1
Num_tpl001
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页数页数 1 22
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1L1 1L2 1L3 PE
1L1 1L2 1L3 PE
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PE -Q1
3VU1640-1MR00 50A
/ 3.0
X2
U4
V4
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U5
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驱动器电源
LF1 LF2 LF3 U4 V4 W4 U5 V5 W5
M4
主轴风扇
M 3~
PE
M5
高压泵
M 3~
PE
M6
Clean pump
M 3~
PE
主轴内冷
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日期 24/05/2011 校对. ADMINISTRATOR 审核原始项目
4 EPLAN 828D加工中心
I>
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3VU1340-1NH00 2.2-3.2A
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R1
S1
T1 bk 2.5mm²
R2
S2
T2 bk 2.5mm²
R3
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T3 bk 2.5mm²
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M7130C 卧轴矩台平面磨床电路图(川磨)2015.6

W2
V2
U2
PE
-XS1 1 2 3 4 -XP1 1 2 3 4
U2 V2 W2 PE
-M2
M
90W/0.31A 3
DB-25
-M4 3kW/7.2A
Y132S-6
13 14 15 16
U4 V4 W4 PE
M
3
-M3 0.55KW/1.5A
Y80M1-4
17 18 19 20
U3 V3 W3 PE
13
13
-SB4
-SB2
‎油泵停止
14
‎磨头停止
14
B
12
10
-XT 24
-XT 26
-SB3 ‎磨头起动
13
13
-KM1
-SB5
14
/4.2:D 14
‎油泵起动
13
13
-KM2
14
/4.4:D 14
13
11
-XT 25
A1
-KM1
A2
1
2 /2.1:B
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‎水泵电机
‎项目描述：‎M7130C 卧轴矩台平面磨床电路图 2015.6
‎页描述：‎电动机
2
3
‎油泵电机
= +
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‎快速升降电机
‎图号 ‎设计
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EPLAN
D
E
2020/5/2
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‎共 10 ‎页 ‎第 2 ‎页
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-TC1
1 110V 100VA
-QF3

大学英语2- U1-U4课文汇总

Unit1——Language in mission An impressive English lesson1 If I am the only parent who still corrects his child's English, then pe rhaps my son is right. To him, I am a tedious oddity: a father he is oblige d to listen to and a man absorbed in the rules of grammar, which my son seems allergic to.2 I think I got serious about this only recently when I ran into one of my former students, fresh from an excursion to Europe. "How was it?" I a sked, full of earnest anticipation.3 She nodded three or four times, searched the heavens for the right words, and then exclaimed, "It was, like, whoa!"4 And that was it. The civilization of Greece and the glory of Roman architecture were captured in a condensed non-statement. My student's "whoa!" was exceeded only by my head-shaking distress.5 There are many different stories about the downturn in the proper use of English. Surely students should be able to distinguish between the ir / there / they're or the distinctive difference between complimentary a nd complementary. They unfairly bear the bulk of the criticism for these knowledge deficits because there is a sense that they should know better6 Students are not dumb, but they are being misled everywhere they look and listen. For example, signs in grocery stores point them to the st ationary, even though the actual stationery items – pads, albums and not ebooks – are not nailed down. Friends and loved ones often proclaim the y've just ate when, in fact, they've just eaten. Therefore, it doesn'tmake any sense to criticize our students.7 Blame for the scandal of this language deficit should be thrust upo n our schools, which should be setting high standards of English languag e proficiency. Instead, they only teach a little grammar and even less advanced vocabulary. Moreover, the younger teachers themselves evidently have little knowledge of these vital structures of language because they also went without exposure to them. Schools fail to adequately teach the essential framework of language, accurate grammar and proper vocabul ary, while they should take the responsibility of pushing the young onto the path of competent communication.8 Since grammar is boring to most of the young students, I think tha t it must be handled delicately, step by step. The chance came when one day I was driving with my son. As we set out on our trip, he noticed a bir d in jerky flight and said, "It's flying so unsteady." I carefully asked, "My s on, how is the bird flying?" "What's wrong? Did I say anything incorrectly ?" He got lost. "Great! You said incorrectly instead of incorrect. We use a dverbs to describe verbs. Therefore, it's flying so unsteadily but not so un steady."9 Curious about my correction, he asked me what an adverb was. Slo wly, I said, "It's a word that tells you something about a verb." It led to hi s asking me what a verb was. I explained, "Verbs are action words; for ex ample, Dad drives the truck. Drive is the verb because it's the thing Dad i s doing."10 He became attracted to the idea of action words, so we listed a fe w more: fly, swim, dive, run. Then, out of his own curiosity, he asked me if other words had names for their use and functions. This led to a discussi on of nouns, adjectives, and articles. Within the span of a 10-minute driv e, he had learned from scratch to the major parts of speech in a sentenc e. It was painless learning and great fun!11 Perhaps, language should be looked upon as a road map and a v aluable possession: often study the road map (check grammar) and tune up the car engine (adjust vocabulary). Learning grammar and a good voc abulary is just like driving with a road map in a well-conditioned car.12 The road map provides the framework and guidance you need fo r your trip, but it won't tell you exactly what trees or flowers you will see,what kind of people you will encounter, or what types of feelings you will be experiencing on your journey. Here, the vocabulary makes the journe y's true colors come alive! A good vocabulary enables you to enjoy what ever you see as you drive along. Equipped with grammar and a good voc abulary, you have flexibility and excellent control. While the road map gu ides your journey to your destination, an excellent vehicle helps you to fu lly enjoy all of the sights, sounds and experiences along the way.13 Effective, precise, and beneficial communication depends upon gr ammar and a good vocabulary, the two essential assets for students, but they are not being taught in schools.14 Just this morning, my son and I were eating breakfast when I atte mpted to add milk to my tea. "Dad," he said, "If I were you, I wouldn't do that. It's sour."15 "Oh my!" I said, swelling with pride toward my son, "That's a gra mmatically perfect sentence. You used were instead of was."16 "I know, I know," he said with a long agreeable sigh. "It's the subj unctive mood."17 I was, like, whoa!Unit2:College-The ladder to successThe humanities: Out of date?1 When the going gets tough, the tough take accounting. When the job market worsens, many students calculate they can'tmajor in English or history. They have to study somethingthat boosts their prospects of landing a job.2 The data show that as students have increasingly shouldered the e ver-rising cost of tuition, they have defected from the study of the huma nities and toward applied science and "hard" skills that they bet will lead to employment. In other words, a college education is more and more se en as a means for economic betterment rather than a means for human betterment. This is a trend that is likely to persist and even accelerate.3 Over the next few years, as labor markets struggle, the humanities will probably continue their long slide in succession. There already has b een a nearly 50 percent decline in the portion of liberal arts majors over t he past generation, and it is logical to think that the trend is bound to co ntinue or even accelerate. Once the dominant pillars of university life, the humanities now play little roles when students take their college tours. T hese days, labs are more vivid and compelling than libraries.4 Here, please allow me to stand up for and promote the true value t hat the humanities add to people's lives. Since ancient times, people hav e speculated about the mystery of those inner forces that drive some pe ople to greatness and others to self-destruction. This inner drive has bee n called many things over the centuries. The famous psychologist, Sigmu nd Freud, called it the "unconscious mind" or, more familiarly, "instinct".5 From the beginning of time, this inner aspect of our being, this dri ve that can be constructive or destructive, has captured our imagination.The stories of this amazing struggle have formed the basis of cultures th e world over. Historians, architects, authors, philosophers and artists hav e captured the words, images and meanings of this inner struggle in the form of story, music, myth, painting, architecture, sculpture, landscape an d traditions. These men and women developed artistic "languages" that help us understand these aspirations and also educate generations. This fertile body of work from ancient times, the very foundation of civilizatio n, forms the basis of study of the humanities.6 Studying the humanities improves our ability to read and write. No matter what we do in life, we will have a huge advantage if we can read complex ideas and understand their meaning. We will have a bright care er if we are the person in the office who can write a clear and elegant an alysis of those ideas!7 Studying the humanities makes us familiar with the language of e motion and the creative process. In an information economy, many peop le have the ability to produce a useful product such as a new MP3 player. Yet, very few people have the ability to create a spectacular brand: the i Pod. Most importantly, studying the humanities invests us with great insi ght and self-awareness, thereby releasing our creative energy and talent in a positive and constructive manner.8 Perhaps the best argument in favor of the humanities is the scope of possibilities that are widely open to us. Did you know that James Cam eron, world-famous director of the movie, Titanic, graduated with a degr ee in the humanities? So did Sally Ride, the first woman in space. So did actors Bruce Lee, Gwyneth Paltrow, Renee Zellweger and Matt Damon. D r. Harold Varmus, who won a Nobel Prize for Medicine, studied the huma nities. Even Michael Eisner, Chairman of the Disney Company, majored in the humanities. Famous people who studied the humanities make a lon g list indeed. It's easy to see that the humanities can prepare us for many different careers and jobs we can undertake, whether medicine, business , science or entertainment. If we study only mathematics, it's likely we wil l be a candidate only for jobs as a mathematician. If we include studyingthe humanities, we can make breakthroughs on many barriers and are li mited only by our effort and imagination9 Of course, nowadays, if we study the humanities alone, we are liable to miss many opportunities. Each one of us needs to become as techni cally and professionally skilled as possible to help meet the needs of mo dern life. In fact, increasingly a pairing of technical knowledge and inner i nsight is seen as the ideal in the establishment of a career. If I were the D ean of Admissions at a medical school and two people applied to our sc hool, both having the required basic scientific courses, one a philosophy major and the other solely a pre-med student, the philosophy applicant would be chosen.10 In summary, the humanities help to create well-rounded human b eings with insight and understanding of the passions, hopes and dreams common to all humanity. The humanities, the ancient timeless reservoir of knowledge, teach us to see things differently and broaden our horizon s. They are as useful and relevant in our modern age as they have always been. Doesn't it make sense to spend some time in the company of the humanities, our outstanding and remarkable treasure of knowledge? Wh o knows how famous YOU might become!Unit3:Discovery of a new life stage Journey through the odyssey years1 Most of us know about the phases of life which we label to parallel different age groups and life stages: childhood, adolescence, adulthood, and old age. We think of infancy before childhood and middle age before old age, with each unique phase bringing its own peculiar set of challenges. These challenges can be overcome by acquainting ourselves with them, such as the child's need to learn, the adult's need to find the right career and build a family, and the senior's need for support and good health care.2 Interestingly, ideas about the stages of life are changing.3 In previous times, people didn't have a solid idea of childhood as being separate from adulthood. A hundred years ago, no one thought of adolescence. Until recently it was understood as a norm that their induction to adulthood was completed as soon as they graduated from college. They would now find a sensible job which would lead to a career. Then during this career they would start a family, ideally before they turned 30.4 Today we have an equivalent need to recognize a new phase of life that comes after high school graduation, continues through college, and then leads to starting a family and having a career, the so-called odyssey years. Recent trends show radical changes as young people are following a different agenda. They take breaks from school, live with friends and often return to living with their parents. Similarly, they fall in and out of love, quit one job and try another or even shift to a new career. So, we need to recognize this new stage, the odyssey years, which many now consider to be an unavoidable stage in reaching adulthood.5 People who were born prior to the 60s or 70s in the last century tended to frame their concept of adulthood based upon achieving certainaccomplishments: moving away from home, becoming financially independent, finding the right spouse and starting a family. But that emphasis on stability did not remain static. Today, young people are unlikely to do the same. During the odyssey years, a high proportion of young people are delaying marriage, child bearing, and even employment.6 The odyssey years can saddle young people with enormous pressure to move forward quickly. As the sole heir and focus of their parents' expectations, hopes and dreams, some react with rebellious and prideful attitudes and behavior toward their parents. They often resent the pressure they're feeling and keep a distance from their parents or even run away from home. Their confusion comes from the difficulties to make parents understand them and the fluid journey of discovery they need in this phase of their lives. To get away from this confusion and upset, many young people resort to computer games, iPods, iPhones, or iPads to help distract them from their pain and stress.7 Likewise, their parents are feeling more anxious. They may make allowances for a transition phase from student life to adult life, but they get upset when they see the transition of their grown children's lives moving away from their expectations and stretching five years to seven years, and beyond. The parents don't even detect a clear sense of direction in their children's lives. They look at them and see the things that are being delayed.8 It's hard to predict what's next. New guidelines haven't been established yet, and everything seems to give way to a less permanent version of itself. There's been a shift in the status and balance of power between the genders, too. More women are getting degrees than men. Male wages have remained stable over the past decades, while female wages have boomed.9 Apart from anything else, this has had an implicit effect on courtship. Educated women can get many of the things they want, such as security, accomplishment, and identity without marriage. However, bothgenders are having a harder time finding suitable mates to build their lives with. Considering all of this, it's beneficial to know that even though graduates are delaying many things after college, surveys show they still hold highly traditional aspirations. For example, this contemporary generation rates parenthood even more highly than previous generations did!10 This new phase will likely grow more pronounced in the coming years. Nations around the world have witnessed similar trends toward delaying marriage and spending more years than ever shifting between higher education and settling down with a career and family.11 Nevertheless, graduates shouldn't be deceived into thinking they can back off simply because things have become more difficult. A large number of people chasing relatively fewer opportunities can create strong competitive pressure. So, from the outset, keep your résuméprofessional and up-to-date.12 To reinforce this essential message, success moving through the odyssey years will come to those who don't expect to achieve their goals right away but know that they must have the strength, capacity and confidence to endure over the long term. If you're a little late with your goals, don't feel like a failure! Stay strong, be positive, and keep focused! Someday you will look back and wonder at the vast changes as you passed through the odyssey years.Unit4:Dance with loveCollege sweethearts1 I smile at my two lovely daughters and they seem so much more mature than we, their parents, when we were college sweethearts. Linda, who's 21, had a boyfriend in her freshman year she thought she would marry, but they're not together anymore. Melissa, who's 19, hasn't had a steady boyfriend yet. My daughters wonder when they will meet "The One", their great love. They think their father and I had a classic fairy-tale romance heading for marriage from the outset. Perhaps, they're right but it didn't seem so at the time. In a way, love just happens when you least expect it. Who would have thought that Butch and I would end up getting married to each other? He became my boyfriend because of my shallow agenda: I wanted a cute boyfriend!2 We met through my college roommate at the university cafeteria. That fateful night, I was merely curious, but for him I think it was love at first sight. "You have beautiful eyes," he said as he gazed at my face. He kept staring at me all night long. I really wasn't that interested for two reasons. First, he looked like he was a really wild boy, maybe even dangerous. Second, although he was very cute, he seemed a little weird.3 Riding on his bicycle, he'd ride past my dorm as if "by accident" and pretend to be surprised to see me. I liked the attention but was cautious about his wild, dynamic personality. He had a charming way with words which would charm any girl. Fear came over me when I started to fall in love. His exciting "bad boy image" was just too tempting to resist. What was it that attracted me? I always had an excellent reputation. My concentration was solely on my studies to get superior grades. But for what? College is supposed to be a time of great learning and also some fun. I had nearly achieved a great education, and graduation was just onesemester away. But I hadn't had any fun; my life was stale with no component of fun! I needed a boyfriend. Not just any boyfriend. He hadto be cute. My goal that semester became: Be ambitious and grab the cutest boyfriend I can find.4 I worried what he'd think of me. True, we lived in a time when a dramatic shift in sexual attitudes was taking place, but I was a traditional girl who wasn't ready for the new ways that seemed common on campus. Butch looked superb! I was not immune to his personality, but I was scared. The night when he announced to the world that I was his girlfriend, I went along with him. And then I suddenly thought: "Oh my gosh! Am I his girlfriend? How did that happen?" Then he whispered sweet words in my ear and said, "I'm going to marry you one day and I will be a lawyer. You will see."5 I was laughing inside and said to myself, "I'd never marry this guy. He's a rebel without a good future. He's my boyfriend because I hate my boring student life. I just want to have fun."6 Sure enough, the following month, I found out he had failed all his courses. Consequently, he was going to be expelled from the university. To my disgust, he seemed resigned to his fate. I knew there was hope, so I led him to the college secretary for reconsideration.7 "You are going to graduate with a BA in political science from UPenn and proceed to the College of Law," I told him, lodging an appeal on his behalf, which was approved. Butch was granted reconsideration. And, once we became steadies, he coordinated his studies and social life, passing all of his classes. He eventually studied law.8 Despite Butch's somewhat wild character, at his core, he is always a perfect gentleman and deserves a lot of credit for that. True, he'd sometimes take the liberty of displaying his love by planting a kiss on my lips right in front of my astonished friends who watched and disapproved. But the truth is we had a pure and responsible relationship for seven full years. Sitting by the palm trees, hand in hand, we would listen to romanticsongs, watch the sunset, and weave dreams of being together with children of our own, forever.9 Two years passed in a blur. One day, Butch took me by surprise as he knelt down and proposed marriage holding a dozen red roses! Filled with deep emotion, I confessed my love for him, "How roooomaaaantic!!" Then my brain woke up from fantasy land. I cried out, "Good heavens. No! We're too young to tie the knot. We haven't even graduated from college yet!" I really loved him but was pessimistic about our chances for success.10 We married five years later.11 Our faithful journey of love and learning took us down rocky roads of hardship and on smooth easy-going highways. It is a long, romantic, sometimes crazy, love story that sums up a 29-year long honeymoon together as a couple who are still madly in love with each other. Our love commenced with a casual attraction but bloomed into a mature love and rich life.。

M7475B 立轴圆台平面磨床电路图

‎上海机床厂有限公司 1
‎项目描述：‎M7475 立轴圆台平面磨床电路图1968.5
‎页描述：‎电源
2
3
= ‎新电路图
+
4
D
W / 2.1:A V / 2.1:A U / 2.1:A
E
‎图号 ‎设计
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EPLAN
2021/1/25
6
‎共 24 ‎页 ‎第 1 ‎页
1
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5
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1.6:E / U
1.6:E / V A
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‎图号 ‎设计
5
EPLAN
2021/1/25
6
‎共 24 ‎页 ‎第 4 ‎页
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4.3:D / 302
302
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4.3:D / 310
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63
-KM12
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-X2 310
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2 /2.5:C 1
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6 /2.6:C 5
13
14 /6.4:A 13
14
13
14
21
22 /6.6:C 21

沪教版7年级上单词默写(U1-U4)

去睡觉起床
Unit 3
单词
音标
词性中文
③
②
①
Earth
[ɜːθ]
n.
地球
quiz
[kwɪz]
pattern protect
['pætn] [prə'tekt]
知识竞
n. 赛，小测
验
n.
模式；形式
v.
保护
report
[rɪ'pɔːt]
n.
报告
part
[pɑːt]
n.
部分
land
[lænd]
n.
陆地
field large provide
[fiːld]
[lɑːdʒ] [prə'vaɪd]
n.
adj. v.
田地，田野大的
提供
pollution [pə'luːʃn] n.
污染
burn energy pollute into
ground kill must important
[bɜːn]
v.
燃烧
n.
国家
age
[eɪdʒ]
n.
年龄
dream
[driːm]
n.
梦想
everyone
[ˈevriwʌn]
pron.
人人；所有人
Germany [ˈdʒɜːməni]
n.
德国
mountain [ˈmaʊntən]
n. 山；山脉
elder
[ˈeldə(r)] adj. 年长的
friendly engineer
[ˈɑːtɪkl]
n.
文章

新编实用英语PE1-U4-W

8:30a.m. 带安德森先生到工厂参观 2:00p.m. 和安德森先生讨论合同 7:30p.m. 与王总经理和安德森先生共进晚宴，
8:00 a.m. 2:00p.m. 9:30 a.m. 3:30p.m. 8:00 a.m. 写总结报告公司职员大会去艺术馆看展览参加商务会议送安德森先生去机场，起飞时间 10:10a.m. 办理登机手续：9:10a.m.
New Practical English 1
By the time you get back, great changes will have taken place _____________________ (take place) in this area. had asked She told me her name after I __________ (ask)
catch flight to Shanghai departure 9:45 a.m. arrival 2:00 p.m.
October 9 Thursday
October 10 Friday
have conference meet Mrs. Black at 9 a.m. at 10:15 a.m. leave Shanghai have lunch at departure 3:30 Beach Hotel p.m. arrival 7:45 Bob meets me at visit the plant at p.m. the airport check 2:30 p.m. Philip picks me up into Beach Hotel at the airport
Fill in the office hour table by making use of the information in the passage that follows Services at Grove Hotel Opening Opening Days Hours Restaurant Sunday--Saturday breakfast 6:30a.m.—9:00a.m. 11:00a.m. — 2:00p.m. lunch

1200采煤机电气图册

8
7
6
5
SB1
SB2
SB3
SB4
SB5
先导指示1
P1_L1 P_L1
P_L2 8 9 10 1
4
3
E
主启 SB1 急停 SB2 先导 SB4 运闭 SB3 漏测 SB5 备用1 SB6
/2.2
P E P1 E1 B1 B2 PC1_H PC1_L L N
9 10 1
先导指示2
左截右截
LC_L RC_L
B
2 5 C 7
1 3 5
2
1 3 C
6
7
6
左端头站插头（7针头）
D 说明
右端头站插头（7针头）
D
F1
E
AUTO
F2
1、本端头站兼遥控接收机为本安型设备，工作电源由VCC1、GND1供给，电源电压为DC12V本安电源。 2、本端头站完成整机的控制功能。 3、本端头站的防护等级为IP54。 E
F
类别令号部门 0
12L+ 12M SD1A SD1B SD2A SD2B SG
-GZ3
1
9 10 11 12
1
SD2A SD2B
12L+ 12M SD1A SD1B SG 12L+ 12M SD2A SD2B SG
26芯蓝色（无左、右本安采集盒时选用13芯）
2 设校审批计对核准 3
L 1
2 3
标版比日准本例期 6.1/ V3.0 1:1 第 8 页 = 7 + 8 9 共 12 页
N L
N
L
3 4
共 12 页 + 7

MY7163 卧轴矩台平面磨床电路图(合信源)2014

3.3:E
K4
4 K11
5 K12
K3
K4
K11
K12
-U2
AC220V
B
/7.3:A
3
4
9
10
11
12
‎欠磁保护
‎KJM 5A 电磁吸盘充退磁器
1
2
DC50-110V
220VAC/0-110VDC/5A
5
6
7 ‎退磁
8 ‎充磁
K6
-HL4
C
x1 x2
K1
K2
K5
-HL5
K7
K8
13
-SA4
/7.3:A
I> I> I>
0.31A
I> I> I>
1.5A
I> I> I>
246
246
246
246
B
B
1U1 1V1 1W1
1U2 1V2 1W2
1U3 1V3 1W3
1V4 1W4 1U4
135
-KM1
/7.4:D 2 4 6
C
135
-KM2
/7.3:D 2 4 6
135
-KM3
/7.2:D 2 4 6
135
1L3 / 3.1:A
135
13 21
135
13 21
135
13 21
135
13 21
-QF1
-QF2
-QF3
-QF4
16-25A
14 22 10~16A
14 02.225~0.4A
14 22 1~1.6A
14 22
/7.1:B /7.1:B /7.1:C /7.1:D

T-1木塑复合材料特性及对比

I 景塑木塑复合材料特性及与其它材料对比作者：Tiger Huang一材料说明：1. 木塑材料的成型是以回收或新的塑料（PE /PP/ PVC）再加上回收的木纤维经一定工艺处理后，再挤压成型的。

2. 具备可回收再制处理的优良特性，在天然木材资源缺乏的今天，木塑材料已备受关注并为世界各国政府大力支持与推广。

3. 国际标准:一般定为50%以上木粉配合率为木材分类,50%以上PP配合率为塑料分类二．特性说明：1. 低吸水率(防水)，不易开裂，不会发霉，抗老化，拒虫害，易安装，低维护，无需涂漆，抗UV，防滑。

三．与原木比较特性说明：1. 具有木材的自然外观、质感。

2. 比木材尺寸稳定性好，无木材节笆。

3. 不会产生裂紋、跷曲、不易变形，产品可制成多种形状，表面无需上保护漆，但也可依使用者喜好，漆上任何喜欢之色彩。

4. 另原木因使用年限之要求，须在切割后安裝前做防腐浸泡处理，以抵御白蚁和其它微生物的浸泡。

5. 因原木经客户使用后，通常会在短期内便释放出剧毒(防腐剂)，造成人体接触及流入土壤，形成环境二次污染及人体危害6. 不须担心多年后因腐朽而降低结构力，造成危险因素。

7. 施工安装特别简单，可以采用最普通的木工工具进行切割，钻孔，刨等。

四．材料特性对比表：发布: 2008-11-06 11:19 | 作者：Tiger Huang1、材积差别：空心结构的木塑材料一吨大约为2－2.5 m³（30－35m²），可用材积接近100％；普通木材的圆木可用材积不足50％，方木最高仅为70％左右。

2、使用寿命：从理论上讲，木塑材料的使用寿命可达到50年，目前国外报道木塑材料使用寿命已达10－15年；而目前采用国内使用的未经特殊处理的普通木材户外制品使用年限一般超不过3年。

3、价格比较：木塑制成品的市场价格平均在1万元RMB/吨左右，按比重、体积折算后价格为5000元/m³左右；而目前中等材质的木材市场价格在6000－8000元/ m³左右。

滴水逆向-手动解析PE头PE头字段说明及课后练习

滴⽔逆向-⼿动解析PE头PE头字段说明及课后练习1.PE⽂件的两种状态PE⽂件与内存镜像，她们以节的形式进⾏分割，由于历史原因，很早之前的编译器将⽂件在磁盘和执⾏之后在内存中的状态以"节"的形式分离，在内存空间的时候分隔的是1000H，在硬盘的时候是200H（⼗六进制）⼀、PE为什么要分节？(1)节省硬盘空间.(这个不是决定的，由编译器决定)(2)⼀个应⽤程序多开(3)理解FileBuffer和ImageBuffer⼆、PE⽂件分了很多个节，那每个节在⽂件中从哪⾥开始？有多⼤？在内存中从哪⾥开始，有多⼤？由谁决定？⼀个可执⾏⽂件所有的密码都在这个结构中.分析PE⽂件DOS头typedef struct _IMAGE_DOS_HEADER { // DOS .EXE headerWORD e_magic; // Magic number --> DOS头的标识，为4Dh和5Ah。

分别为字母MZWORD e_cblp; // Bytes on last page of fileWORD e_cp; // Pages in fileWORD e_crlc; // RelocationsWORD e_cparhdr; // Size of header in paragraphsWORD e_minalloc; // Minimum extra paragraphs neededWORD e_maxalloc; // Maximum extra paragraphs neededWORD e_ss; // Initial (relative) SS valueWORD e_sp; // Initial SP valueWORD e_csum; // ChecksumWORD e_ip; // Initial IP valueWORD e_cs; // Initial (relative) CS valueWORD e_lfarlc; // File address of relocation tableWORD e_ovno; // Overlay numberWORD e_res[4]; // Reserved wordsWORD e_oemid; // OEM identifier (for e_oeminfo)WORD e_oeminfo; // OEM information; e_oemid specificWORD e_res2[10]; // Reserved wordsDWORD e_lfanew; // File address of new exe header}IMAGE_DOS_HEADER, *PIMAGE_DOS_HEADER;NT头typedef struct _IMAGE_NT_HEADERS {DWORD Signature;IMAGE_FILE_HEADER FileHeader;IMAGE_OPTIONAL_HEADER32 OptionalHeader;}IMAGE_NT_HEADERS32, *PIMAGE_NT_HEADERS32;typedef struct _IMAGE_FILE_HEADER {WORD Machine;WORD NumberOfSections;DWORD TimeDateStamp;DWORD PointerToSymbolTable;DWORD NumberOfSymbols;WORD SizeOfOptionalHeader;WORD Characteristics;} IMAGE_FILE_HEADER, *PIMAGE_FILE_HEADER;typedef struct _IMAGE_OPTIONAL_HEADER {WORD Magic;BYTE MajorLinkerVersion;BYTE MinorLinkerVersion;DWORD SizeOfCode;DWORD SizeOfInitializedData;DWORD SizeOfUninitializedData;DWORD AddressOfEntryPoint;DWORD BaseOfCode;DWORD BaseOfData;DWORD ImageBase;DWORD SectionAlignment;DWORD FileAlignment;WORD MajorOperatingSystemVersion;WORD MinorOperatingSystemVersion;WORD MajorImageVersion;WORD MinorImageVersion;WORD MajorSubsystemVersion;WORD MinorSubsystemVersion;DWORD Win32VersionValue;DWORD SizeOfImage;DWORD SizeOfHeaders;DWORD CheckSum;WORD Subsystem;WORD DllCharacteristics;DWORD SizeOfStackReserve;DWORD SizeOfStackCommit;DWORD SizeOfHeapReserve;DWORD SizeOfHeapCommit;DWORD LoaderFlags;DWORD NumberOfRvaAndSizes;IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];} IMAGE_OPTIONAL_HEADER32, *PIMAGE_OPTIONAL_HEADER32;课后练习(1)找出所有DOS头数据，并统计DOS头⼤⼩.typedef struct _IMAGE_DOS_HEADER { // DOS .EXE headerWORD e_magic; // Magic number --> DOS头的标识，为4Dh和5Ah。

大金中央空调显示u4是什么意思故障怎样解决排除

大金中央空调U4是什么意思怎样解决排除大金中央空调故障代码U4是通信故障，可能是室内机室内机或室内机与室外机之间的故障，建议将室内外电源全部关闭，再全部打开，然后再开空调试试。

另外要注意，同一系统内的室内机、室外机须同时供电，否则也会报U4故障。

重新闭合电源试还报U4的话，可能是烧板或者信号线断开了，联系大金售后服务报修。

一、大金故障代码(内机)没带压力表时检测压力Ｈ〕高压压力计算公2 Ｒ２２高压＝〔ＶＨA0-----保护装置动作低压＝〔ＶＬA1-----室内机P板不良Ｒ４１０Ａ高压＝〔A2-----风扇连锁器动作低压＝〔A3-----排水水位异常. A4-----热交换(1)温度异常A5-----热交换(2)温度异常五、检查热敏电阻的电A6-----风扇电动机过负荷过电流过或堵转. A7-----风向调整电动机堵转A8----AC输入过电流温度: －２０度电阻A9-----电子膨胀阀异常－１５度电阻为１５０AA-----加热器过热AH-----错误或着赃污－１０度为１１６.５AC-----空负载运作AJ----容量设定不良５度５１.９千欧姆AE----给水不足１０度４０千欧姆AF-----加湿器错误C0-----传感器异常１５度３１.８千欧姆C1---空白２０度２５千欧姆C2----空白２５度２０千欧姆C3----排水水位传感器异常３０度１６千欧姆C4-----热交换(1)温度异常C5-----热交换(2)温度异常３５度１３千欧姆C6----风扇电动机过负荷过电流连锁检测用传感器异常４０度１０.６千欧姆C7--风向调整电动机堵转检测用传感器异常４５度８.７千欧姆C8----AC输入电流传感器异常C9----吸入空气温度传感器异常CA---吹出空气温度传感器异常六、内机风扇马达插接CH----空白CC----湿度传感器异常 1 检查插接件的连接CJ----温度传感器异常2检查马达电源电压输CE----辐射传感器异常CF----高压压力开关不良3检查马达控制电压(3 4检查旋转指令电压输二、大金室外机故障代码5检查旋转脉冲输入(4 1－－－旋转E0----保护装置动作2－－－旋转E1----室外机P板不良3－－－马达E2----空白E3----高压压力4－－－P.0VE4---低压压力5－－－未使E5----压缩机电动机过负荷E6----压缩机电动机过电流堵转6－－－未使E7-----风扇电动机过电流过负荷堵转7－－－马达E8-----AC输入过电流E9----电子膨胀阀错误EA----空白八、制冷能力EH----泵过电流堵转EC----水温异常Ｒ２２型低压４千克－EJ----现场追加保护装置动作EE----排水水位异常Ｒ４１０Ａ低压６千克克EF----畜热单元异常H0----传感器异常Ｒ４１０Ａ高压２４千H1----空气温度传感器异常低压低于０.０７千克H2----电源传感器异常高压高于３６千克连续H3----高压压力开关不良H4----低压压力开关不良压缩机温度高于６０度H5----压缩机电动机过负荷传感器家用ＶＲＶ制暖时四通频H6----压缩机电动机过电流堵转检测用传感器异常H7----风扇电动机过电流过负荷堵转检测用传感器异常九、电子膨胀阀的检查H8----AC输入过电流传感器异常H9----室外温度传感器异常HA----吹出空气温度传感器异常１－３－６是否导通HH----泵过电流连锁检测用传感器异常HC----水温传感器异常２－４－５是否导通HJ----空白１－６２－６３－HE----排水水位传感器异常十、压力传感器的检测红———＋５ＶＤＣ黑———ＧＮＤ〔３F2----NO.2系统保护装置动作F3----排出管温度异常绿———低压〔２〕F4----空白F5----空白黑———高压〔１〕F6----热交(1)温度异常十一、新冷煤表F7----空白F8----空白F9----空白FA----吐出压力异常大金内机型尺寸,4M或型.940X500><60型FH----油温异常50-60机型铜管为12型940X500>,FC----吸入压力异常内机63/71</PIXTEL_MMI_EBOFJ----空白FE---油压异常FF----油面异常十二、大金VRV中央J0----制冷温度传感器异常A1 室内机印刷电路板热交换器温度感应器系置动作。

译林版英语八年级上单词默写

[ɔːs'treɪlɪə]
n.澳大利亚
5
take care
保重
6
coffee
[ˈkɒfi]
n.咖啡
7
top
[tɒp]
n.顶部，
8
president
[ˈprezɪdənt]
n.总统，国家主席
9
wide
[waɪd]
adj.…宽的；宽广的
10
steel
[stiːl]
n.钢
11
ton
[təˈmɒrəʊ]
n.吨
adj.最少的；最小的
30
further
[ˈfɜːðə]
（far比较级）较远
31
farther
['fɑːðə]
（far比较级）较远
32
furthest
（far最高级）最远
33
farthest
['fɑːðɪst]
（far最高级）最远
34
spend
[spend]
vt.花费（时间金钱）
35
spend time on/doing sth.
4
brush
[brʌʃ]
n.刷子；画笔
5
glue
[ɡluː]
n.胶水
6
rope
[rəʊp]
n.绳索
7
scissors
['sɪzəz]
n.[复]剪刀
8
tape
[teɪp]
n.磁带；胶带
9
DIY
n.自己动手做
10
exactly
[ɪg'zæktli]
adv.确切地，精确地
11

PE PET PP PS PV材料的区别和用途

PE PET PP PS PV材料的区别和用途EPS（保丽龙）系列：A ];M6s-ZEPS（保丽龙）是一种优良的防震包装材料，价格低廉，应用广泛，具有隔热，隔音，方针，质轻缓冲，易成型等性能和特点。

EPS（保丽龙）切割迅速，其尺寸，规格，形状，可根据客户具体要求进行生产和设计，无需开模费用，可根据客户产品随时更改，满足客户的各种不同要求和特殊设计。

EPS（保丽龙）可加工成型割，常用内衬，特殊切割平板，护角，护边等。

机制EPS（保丽龙）需要开模，适用于需求量大，形状复杂的各类包装。

$T D:N:{~'R;l 应用范围：办公家具，玻璃制品，仪器仪表，石材，礼盒，工艺品，建筑工程等等。

-h{#yn q应用范围：家用电器，仪器仪表，电子产品，玻璃陶瓷，旅游箱包。

工艺礼品，等等。

EPE（珍珠棉）系列：6s,N7`*U:yEPE（EXPAND APLE POLY EPHYLENE）即可发性聚乙烯，又称珍珠棉，它采用于烷发泡成形并加入两种辅料，工业或医用及超细滑石料和食品的抗缩剂单甘油脂，整个生产过程为物理变化，所以EPE是无毒的，环保的，EPE有较高的弹性，且富有韧而不脆，是目前世界上比较先进、环保的内装材料。

-s EPE具有表面柔和，洁白，悦目，具有质轻，隔热，防震隔音，耐腐蚀性，抗老化能力强，加入静电剂的粉红色EPE原料，还具有显著的防静电功能，因其质轻使得包装产品大大降低运输费用，所以EPE是理想的环保的外销包装材EPE珍珠棉材料物理性能：•密度 0.03g/㎝3•抗拉强度 3.4㎏/㎝2•撕裂强度 2.6㎏/㎝2T#d+h•延伸率（700℃） 125%•收缩率 0.75%•使用温度 -60℃～+80℃cns.sz发表于 2007-9-25 06:56 PM抗静电性：静电的产生是共价分子链的塑料在摩擦时，得失电子很难传导消失引起的，EPE经抗静电处理后，材料表面电阻可以从1014 ～1016Ω可降至108～1010Ω，一般常用防静电系数在109 ～1011Ω。

9BU1-U4音标牛津译林版

9BUnit1/ei/系列12.sh a pe形状；外形n 使成形，塑造v [①ʃeɪ+①p]/a/系列18.watcht o wer瞭望塔[ˈwɒtʃtaʊə(r)]→[①ta+①ʊə(r)]19.s a ri 莎丽（印度妇女民族服饰）[ˈsɑːri]→[①ˈsɑː+①ri]/aɪ/系列字母i发出22.l i e位于[laɪ]23.h i re租用；雇佣[ˈhaɪə(r)]→[①ˈhaɪ+①ə(r)]24.t i ring使人疲劳的，累人的[ˈtaɪərɪŋ]→[①ˈtaɪ+①ə +①rɪŋ] /ɜː/和/ə/系列25.s er vice服务；工作[ˈsɜːvɪs] →[①ˈsɜː+①vɪ +①s]28.upw ar ds向上[ˈʌpwərdz]→[①ˈwər+①dz]30.Indi a n印度（人）的；印度人[ˈɪndiən]→[①ˈɪn +①diə n]/ɒ/系列31.Chinese o pera中国戏曲[ˈɒprə] →[①ˈɒ+①p +①rə]32.Chinese kn o t中国结[nɒt] →[①nɒ+①t]36.Hindi印地语[ˈhɪndi]37.IT（information technology）信息技术38.Japanese日本（人）的[ˌdʒæpəˈniːz]39.middle 中间，中央40.Chinese paper-cutting中国剪纸41.in the middle of在...的中间42.underground地面下的，地下的43.south-east东南方[,saʊθ'iːst]44.take up占据（空间）；占用（时间）9BUnit2/æ/系列字母a发出1)South A frica南非人[①ˈæ ①frɪ ①kə]2)a griculture农业[①ˈæ ①ɡrɪ ①kʌl ①tʃə(r)]3)It a lian意大利人[①ɪˈ ①tæ ①liən]4)p a ssage章节；乐段[①ˈpæ ①sɪ ①dʒ]5)m a them a tics数学[①ˌmæ ①θəˈ①mæ ①tɪ①ks]6)l a nd使着落；着落，降落[①læn①d]/e/系列7)inv e nt发明，创造[①ɪn ①ˈve n①t]inv e ntion发明物；创意[①ɪn ①ˈve n①ʃn]inv e ntor 发明者[①ɪn ①ˈve n ①tə(r)]8)dev e lop开发；发展[①dɪ ①ˈve ①lə①p]dev e lopment发展[dɪˈveləpmənt]9)prof e ssor教授[①prə ①ˈfe ①sə(r)]10)t e st测试；检验[①te①st]11)st e p一步；走，跨步[①s①te p]/ei/系列12)n a vy海军[①ˈneɪ ①vi]n a val海军的[①ˈneɪ①vl]13)r a dium镭[①ˈreɪ ①diə ①m]/ʌ/系列字母u，字母o，字母组合ou发出14)R u ssian俄罗斯人[①ˈrʌ ①ʃn]15)h u nger饥饿[①ˈhʌŋ ①ɡə(r)]16)prod u ction产量[①prə ①ˈdʌ ①k ①ʃn]17)disc o very发现；发现物熟[①dɪˈs①kʌ①və①ri]/a/系列18)aircr a ft飞机，航空器[①ˈk ①rɑː ①ft]spacecr a ft宇宙飞船[①ˈs①peɪs①k④rɑːft]19)adv a ntage优势，有利条件[①əd ①ˈvɑːn ①tɪ①dʒ]/aɪ/系列字母i发出20)p i lot飞行员[①ˈpaɪ ①lə ①t]21)l i cence执照，许可证<美> license [①ˈlaɪ ①sn ①s]22)g i ant巨大的；伟大的[①ˈdʒaɪən ①t]23)pr i de可引以为豪的人（或事物）；骄傲[①p ①raɪ①d]24)sc i entist 科学家[①ˈsaɪən①tɪ ①st]25)t i tle标题；职位名称[①ˈtaɪ ①tl]26)h y brid杂交的[①ˈhaɪ ①b ①rɪ①d]27)f i ghter斗士，战斗者；战斗机熟[①ˈfaɪ①tə(r)]28)w i dely广泛地，普遍地熟[①ˈwaɪ①d①li]/ɜː/和/ə/系列29)s er ve 服役；服务，招待[①sɜː①v]30)s ur face表面，外表[①ˈsɜː ①fɪs]31)f ur ther更多的，更进一步的熟[①ˈfɜː ①ðə(r)]32)P a cific太平洋的[①pə ①ˈsɪ①fɪk]33)Eur o pean欧洲人熟[①ˌjʊə①rəˈ①piːən]/əu/系列34)o cean海洋，大洋[①ˈəʊ ①ʃn]35)unkn o wn未知的；不出名的熟[①ˌʌn①ˈnəʊn]36)contr o l控制，支配熟[①kən①ˈtrəʊl]out of control失去控制，无法管理/ɒ/系列37)expl or er探险者，考察者[①ɪkˈs ①p ①lɔː①rə(r)]38)or der命令，指挥，要求熟[①ˈɔː①də(r)]39)lab o ratory（=lab）实验室[①lə ①ˈbɒ ①rə ①tri]40)c o ntribution贡献[①ˌkɒn ①trɪˈ①bjuː①ʃn]41)astron au t宇航员[①ˈæs ①trə ①nɔːt]/i:/或/ɪ/系列42)sp i n快速旋转[①s ①pɪn]43)c i t i zen公民，市民[①ˈsɪ ①tɪ①zn]44)l ea p飞跃；跳跃[①liː①p]45)incr ea se增加[①ɪn①'k ①riːs]46)cut...short缩短47)mankind人类48)by hand手工49)happen to碰巧50)at present目前，现在9Bunit3/æ/系列字母a发出apple1.s a tisfy 满足，使...满意[①ˈsæ②tɪs③faɪ]s a tisfied满意的，满足的[①ˈsæ②tɪs③faɪ④d]be s a tisfied with对...感到满意2.b a ttery电池[①ˈbæ②tə③ri]3.up to st a ndard达到标准[①ˈs②tæn③də④d]/e/系列字母e，字母a发出egg4.m e ss混乱，杂乱[①me②s]5.spr ea d使分布；展开，扩散[①sp②re③d]6.regr e t后悔；遗憾[①rɪ②ˈɡ③re t]7.forg e tful健忘的[①fə②ˈɡe③t④fl]8.in g e neral总的来说；大体上[①ˈdʒe n②rəl]9.st a ir楼梯[①s②teə(r)]/eɪ/系列10.outer sp a ce太空[①s②peɪ③s]11.br ai n大脑[①b②reɪn]12.l a y放，搁[①leɪ]13.p a per文件，证明[①ˈpeɪ②pə(r)]/ɜː/和/ə/系列/əu/或/əʊ/系列14.r o bot机器人[①ˈrəʊ②bɒ③t]15.p o st邮寄=<美>mail [①pəʊ②st]16.h o ld（打电话时）等待，不挂断[①həʊl②d]/iː/或/ɪ/系列17.b i ll账单[①bɪ②l]18.p i ll片剂；药片[①pɪ②l]19.wh ee l轮子，车轮[①wiː②l]pl e te完全的；彻底的[①kəm②ˈp③liːt]=compl e tel y完全地[①kəm②ˈp③liːt④li]/uː/系列21.sm oo th光滑的；平坦的[①s②muː③ð]sm oo thly平整地；顺利地[①ˈs②muː③ð④li] 22.thr ou gh（电话）接通[①θ②ruː]put thr ou gh给...接通（电话）23.s u it套装[①sjuː②t]/ʌ/系列字母u，字母o，字母组合ou发出24.u nsure不确定的，没把握的[①ˌʌn②ˈʃʊ③ə(r);]25.c u stomer消费者，顾客[①ˈkʌs②tə③mə(r)]/aɪ/系列字母i发出26.i ron熨烫[①ˈaɪ②ən]27.v i rus病毒[①ˈvaɪ②rə③s]28.pr i vate私人的[①ˈp②raɪ③vət]/ɒ/或/ɔː/系列29.or der订购[①ˈɔː②də(r)]30.expl or e探索，探讨[①ɪkˈs②p③lɔː(r)]31.st or e储藏，存储[①s②tɔː(r)]32.pr o duct产品，成果[①ˈp②rɒ③dʌ④kt]33.pr o perly正确地，适当地[①ˈp②rɒ③pə④li]34.c o in硬币[①kɔɪn]35.qu a lity质量[①ˈkwɒ②lə③ti]36.whatever任何，一切事情37.need需要的事物；欲望38.no longer不再39.first of all首先9Bunit4/æ/系列字母a发出apple1)power p a ck电源包[①ˈpaʊə(r)] [①pæ②k]2)p a ssenger乘客[①ˈpæ②sɪn③dʒə(r)] →[ˈpæsɪndʒə(r)]3)gr a vity重力[①ˈɡ②ræ③və④ti] →[ˈɡrævəti]4)r a pid快的，迅速的[①ˈræ②pɪ③d] →[ˈræpɪd]=r a pidly快地，迅速地[①ˈræ②pɪ③d④li] →[ˈræpɪdli]5)pl a net行星[①ˈp②læ③nɪt] →[ˈp lænɪt]6)interpl a netary行星间的[①ˌɪntə②ˈp③læ④nɪ⑤tri]→[ˌɪntəˈp lænɪtri]7)air t a nk氧气罐[①tæŋ②k] →[tæŋk]8)ch a llenging挑战性的[①ˈtʃæ②lɪn③dʒɪŋ] →[ˈtʃælɪndʒɪŋ]9)c a rry out执行；开展[①ˈkæ②ri] →[ˈkæri]/e/系列字母e，字母a发出egg10)h e lmet头盔[①ˈhe l②mɪ③t] →[ˈhe lmɪt]11)sp e cially专门地，特地[①ˈs②pe③ʃə④li]→[ˈs peʃəli]12)n e twork网络[①ˈne t②wɜːk] →[ˈne twɜːk]=net网；网络13)perc e ntage百分比，百分率[①pə②ˈse n③tɪ④dʒ]→[pəˈse ntɪdʒ]14)comp a re比较[①kəm②ˈpeə(r)] →[kəmˈpeə(r)]=compare to/with与...相比15)aw a re知道，意识到[①ə②ˈweə(r)] →[əˈweə(r)]/eɪ/系列16)a lien外星人；外星的[①ˈeɪ②liən] →[ˈeɪliən]17)t a sty味道好的[①ˈteɪs②ti] →[ˈteɪsti]18)entert a inment娱乐[①ˌen②tə③ˈteɪn④mənt]→[ˌentəˈteɪnmənt]19)str a nger外来者，陌生人[①ˈs②treɪn③dʒə(r)] →[ˈs treɪn dʒə(r)]/ɜː/和/ə/系列20)c ir cle围绕；将...圈起来[①ˈsɜː②kl]→[ˈsɜːkl]/əu/或/əʊ/系列21)fl oa t飘移，漂浮[①f②ləʊ③t]→[f ləʊt]/iː/或/ɪ/系列22)incr ea se增加n. [①ɪn②'k③riːs] →[ɪn'k riːs]23)at a/the sp ee d of以...的速度[①s②piː③d] →[s piːd]24)agr ee ment一致，同意[①ə②ˈɡ③riː④mənt]→[əˈɡriːmənt]25)r i sk风险，危险[①rɪ②sk] →[rɪsk]26)d i stance距离；远处[①ˈdɪs②tən③s] →[ˈdɪstəns]/uː/系列27)g oo ds[复]商品，货品[①ɡʊ②dz] →[ɡʊdz]28)poll u ted被污染的[①pə②'lʊ③tɪ④d] →[pə'lʊtɪd]/ɑː/系列29)M ar s火星[①mɑː②z] →[mɑːz]30)disadv a ntage劣势，缺点，不利条件[①ˌdɪs②əd③ˈvɑːn④tɪ⑤dʒ]→[ˌdɪsədˈvɑːntɪdʒ] /ʌ/系列字母u，字母o，字母组合ou发出31)unc o mfortable使人不舒服/舒适的[①ʌn②ˈkʌm③f④tə⑤bl] →[ʌnˈkʌmftəbl]/aʊ/系列32)p o wer pack电源包[①ˈpaʊə(r)] [pæk]→[ˈpaʊə(r)]33)cr ow ded拥挤的[①ˈk②raʊ③dɪd] →[ˈk raʊdɪd]/aɪ/系列字母i发出34)dr y干的；（使）变干，（把......）弄干[draɪ]dr i ed干缩的；干的[①draɪ②d] →[draɪd]dried food干粮/ɒ/或/ɔː/系列35)o xygen氧气[①ˈɒk②sɪ③dʒən] →[ˈɒksɪdʒən]36)in the f or m of以...的形式[①fɔː②m] →[fɔːm]37)p o ssibility可能性[①ˌpɒ②sə③ˈbɪ④lə⑤ti]→[ˌpɒsəˈbɪləti]38)electr o nic电子的[①ɪˌ②lek③ˈtrɒ④nɪk] →[ɪˌlekˈtrɒnɪk]39)after all毕竟40)sleeping bag睡袋41)（all）over again再；重新。

四年级下册英语期末U1-U4 冲刺复习(知识精萃模块综合测练)(广州教科版专版,word版含答案)

四年级下册英语期末高分冲刺Module 1-2 U1-U4 复习（广州教科版专版）（知识精萃+模块综合测练）Part 1 (Module 1 U1-U2)◎单词短语精萃in a black uniform 穿着黑色制服in a blue jacket 穿着蓝色夹克in a white coat 穿着白色大衣in a white dress 穿着白色连衣裙with glasses 戴着眼镜maths teacher 数学老师round face 圆脸big eyes 大眼睛long hair 长发brown hair 棕色头发art teacher 美术老师◎核心句型1.---Who’s that woman? 那个女士是谁？---She’s Miss Liu, our new teacher. 她是我们新来的老师，刘老师。

who意为“谁”, 用来提问姓名、身份。

2. ---Can you see him? 你能看见他吗？---Yes, I can. /No, I can’t. 是的，我能。

/不，我不能。

can意为“能够”,是一个情态动词。

情态动词后跟动词原形。

can的否定形式是can not，可以缩写为can’t.如：I can draw. 我会画画。

Lily can’t swim. 丽丽不会游泳。

3. ---What is she like? 她是怎么样的人？---She has green eyes and a small mouth. 她有一双绿色的眼睛和一个小嘴巴。

“What is...like? ...”意为“......是怎么样的？”，用来提问人物的外貌或性格。

4. He looks like a cook. 他看起来像是一个厨师。

look意为“看起来...”,后接形容词。

如：He looks shy. 他看起来很害羞。

look like 意为“看起来像...”，后接名词。

如: Her face looks like a red apple. 她的脸看起来像是一个红苹果。

第一章电工学

B
电场力把单位正电荷从A移到B所做的功(UAB )，与外力克服电场力把相同的单位正电荷从B经电源内部移向 A所做的功(eBA )是相同的，所以UAB= eBA。
第1章直流电路
5、电功率：单位时间内电场力所做的功。
p dw dt
p dw dt
,
u
dw dq
,
i
dq dt
dw dq dq dt
结论：电路中任意两点间的电压等于该两点间的电位之差。
第1章直流电路
例1.2 a
已知 Uab=1.5 V，Ubc=1.5 V。求 Ua；Ub；Uc；Uac
(1) 以a点为参考点，Ua=0
Uab= Ua–Ub
1.5 V

Ub = Ua –Uab= –1.5 V
Ubc= Ub–Uc Uc = Ub –Ubc= –1.5–1.5= –3 V Uac= Ua–Uc = 0 –(–3)=3 V (2) 以b点为参考点，Ub=0
1.1 电路的作用和组成
电路——电流流通的路径。
电源＋ US －
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第1章直流电路
电路的作用
3
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第1章直流电路
电路的组成
电源：将非电形态的能量转化为电能的供电设备。
负载：将电能转化为非电形态的能量的用电设备。
连结导线：沟通电路、输送电能。
兆
千
厘
毫
10–3
纳
皮
…
109 106
103 10–2
10–6 10–9
10–12 …
第1章直流电路

新编实用英语综合教程-第一册-U4-Punctuality-pays

duringv_.sc_安h_e_排du_l_e_d_ office hours. If I am not
there, [ˈʃedju:ld]
_ar_.e预_-s_c定_h_e的d_u_l,_e已_ 排an日oth程er的appointment.
2. _______ a convenient time, at least re-schedule [riˈʃeodnjucSce:lhdae]dwuvle.e重ek新, to定c排all and talk with
What is the your teachers’ attitude to time?
• One of the biggest problems that tendasnntooy _______(惹恼) your
theaaschteorsdo
_w_it_h_________p(u与nct…ua相l 关) your being late for class because not all
• Arriving at my offic3e0 _m_i_n_ut_e_s__a_f_te_r__t_h_e_a_p_p_o_i_n_tm_e_n_t___ (when) I found a voice messagheursroieId _i_n_______(what) being afraid that I had missed the appointment.
1.What is the Americans attitude to time?
2.What is the real-life story happened to the author?
3.What are the tips for behavior about appointment and punctuality?

3异步电动机的拖动

❖ 转子
小型电机常用高强度漆包线绕制的散嵌线圈放入槽内，槽内绝缘通常用聚脂薄膜及青壳纸。
转子按结构分类：
•鼠笼式异步电动机：结构简单，坚固，成本低，运行性能不如绕线式。
•绕线式异步电动机：通过外串电阻改善电机的起动，调速等性能。
气隙
气隙大则磁阻大，要产
生同样大小的旋转磁场
，需要较大励磁电流。
额定电压 UN：额定运行状态下加在定子绕组上的线电压
额定电流IN：指电动机在定子绕组上加额定电压、轴上输出额定功率时，定子绕组中的线电流。
额定频率f1：我国工业用电标准频率 50HZ
额定转速n：指电动机定子加额定频率的额定电压，且轴上输出额定功率时电机的转速。
额定功率因数cosφN：指电动机定子加额定负载时，定子边的功率因数。
i1＜ 0，i2＞0，i3 = 0
W1
S
V1
U2
t = 360O 时
i1= 0，i2＜ 0，i3＞0
(2) 旋转磁场的转速 n0 —— 同步转速
前面的例子里：
i 变化一周 →旋转磁场转一圈
i 每秒钟变化 f1 周→旋转磁场转 f1 圈
n0 = 60 f1 (r / min) 同步转速 n0 的大小怎样改变？
iU = 0 iV = Imsin(－120o ) iW = Imsin 120o
FU = 0 FV = Fm sin(－120o) FW = Fm sin120o F = 2FW cos30o
F=
3 2
Fm
U1
V2
W2
S
N
W1
V1
U2
t = 90o 时
iU = Im iV = Imsin(－30o )