机电类专业英语阅读教程
机械工程专业英语教程(第2版)[施平主编][翻译]_lesson19
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Gear Materials (Reading Material)齿轮材料（阅读材料）Gears are manufactured from a wide variety of materials, both metallic as well as nonmetallic.齿轮由多种种类的材料制造，包括金属材料和非金属材料。
As is the case with all materials used in design, the material chosen for a particular gear should be the cheapest available that will ensure satisfactory performance.在设计中可以使用多种材料的情况下，对于特定齿轮，应当做到选用满足使用要求下的最便宜的材料。
Before a choice is made, the designer must decide which of several criteria is most important to the problem at hand.在作出选择前，设计师必须决定在众多设计准则中哪个是当前最重要的。
If high strength is the prime consideration, a steel should usually be chosen rather than cast iron.如果高强度是第一要考虑的因素，通常就选择钢材而不选择铸铁。
If wear resistance is the most important consideration, a can be made, for problems involving noise reduction, nonmetallic. Materials perform better than metallic ones.如果耐磨性是最重要的因素，可以选用非金属材料要比金属材料更好，同时也可以解决降低噪声的问题。
高职机电专业英语 UNIT 1
Chip Brushes
Chip brushes are inexpensive paint brushes that are handy for all kinds of uses around the shop. We’re not sure where the name originated, but we don't think it had anything to do with removing chips; nevertheless this is one of the uses these brushes excel at. They are also ideal to clean the packing grease off a new lathe or mill. Incidentally, experienced machinists will tell you always to use a brush, rather than compressed air, to clean the chips from machine tools as compressed air will drive the chips deep into the recesses of the machine. Chip brushes and a shop vac are the preferred way to clean up chips.
Center Drills
Center drills are stiff, stubby little drills used to start holes in the end of work-piece. If you try to drill a hole in a work-piece without using a center drill you will find that the drill will most likely wobble off center and not drill straight into the work-piece. Standard drilling practice is to first make a facing cut on the end of the work-piece, then drill a starter hole using a center drill and then drill the hole to the required depth with a standard drill
电气工程及其自动化专业英语专业英语-阅读方法课件
囚声读是在中、小学进行大量阅读训练中形成的，严重 影响阅读速度。多数人的阅读速度是讲话速度的2到3 倍
囚心读：在心里自言自语，对每个词发音阅读，相当于 无声阅读。
囚指读，头读，译读同样影响阅读速度 囚不要出声阅读任何资料！有意识地抑制住内心的声音
和嘴唇的颤动！使眼睛在阅读材料上移动的速度比自 己心中或喉头出声的速度快一点点！
27
推断与猜测(7)
z利用构词法 The speaker should have used the microphone. His voice was inaudible except to those near to the platform
28
参考书籍
z叶丽珍, 《英语阅读猜词技巧与训练》。武 汉: 华中科技大学出版社 ，2001，6
辑关系； z根据所读材料进行一定的判断、推断和引申； z领会作者的观点和态度；
2
阅读的基本要素(1)
z速 度
囚有效的阅读必须建立在一定的速度之上
z理 解 率
囚理解率可以通过对文章内容的理解性测试题目 的回答结果来确定
3
阅读的基本要素(2)
z速 度
囚阅读速度的单位为w.p.m(words per minute),即每分钟 阅读的词数。
专业英语的阅读
z阅读理解的大纲要求 z阅读的基本要素 z阅读方法 z影响阅读速度的几个障碍点 z了解文章的章法 z推断与猜测
1
阅读理解的大纲要求
z掌握所读材料的主旨和大意； z了解用以阐述主旨的事实和有关细节； z根据上下文判断大纲附表以外的某些词汇和短语
的意义； z既理解个别句子的意义，也理解上下文之间的逻
机电英语Unit 7
□ Examining the drawings of a D
new mold development on
computer.
□ Presiding a meeting about A
innovation of data management.
□ Inspecting the workshop of the B
can not only understand how PDM can meet their data
management challenges, but also determine which PDM system can help them manage mold design data most effectively.
and custom parts, which are unique and require additional work.
However, they want to avoid using a custom part when a standard part will do the job. By using a PDM system, mold makers can use item numbers
reusing some design data
updating the bills of materials automatically
Unit 7 Operational & Technical Management
Reading A
Task 3 Read the passage again and decide whether the
With an integrated PDM system you can search for and find
机电工程专业英语（第二版）（可编辑）
机电工程专业英语（第二版）CatalogChapter One Chapter TwoChapter Three Chapter FourChapter Five Chapter SixChapter Seven Chapter EightChapter One Fundamentals of Mechanical EngineeringLesson 1 Properties of MaterialsLesson 2 Classification of SteelsLesson 3 Heat TreatmentLesson 4 Types of GearLesson 5 Rolling-Typedensity [ 5densiti ]n.密度, 比重specific heat 比热coefficient [ kEui5fiFEnt ]n.系数conductivity [ 7kCndQk5tiviti ]n.传导性, 传导率Lesson 1-1melt [ melt ]v.使融化, 使熔化, 使软化ductility [ dQk5tiliti ]n.展延性, 柔软性toughness [ 5tQfnis ] n.韧性, 坚韧abrasion [ E5breiVEn ]n.磨损girder [ 5^E:dE ] n.桁架, 大,纵,横梁armor [ 5B:mE ]n.装甲bumper [ 5bQmpE ] n.缓冲器,减震器stamp [ stAmp ]n.邮票, 印, 图章 v. 压印, 冲压penetration [ peni5treiFEn ] n.穿过, 渗透, 突破fender [ 5fendE ]n.防卫物, 挡泥板mill [ mil ] n.磨粉机, 磨床,工厂vt.碾磨Lesson 1-11.be distinguished fromThe true is to be distinguished from the false 真假必须辨明。
机电专业英语第2版21Unit 21机电一体化
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机电专业英语
徐存善主编
Mechatronics is centred on mechanics, electronics,
control engineering, computing and molecular engineering
[2]
. The portmanteau “Mechatronics” was first coined by
LOGO
Unit 21 Mechatronics 机电一体化
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徐存善主编
Mechatronics
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机电专业英语
徐存善主编
Mechatronics is the combination of mechanical engineering, electronic engineering and software engineering. The purpose of this interdisciplinary engineering field is the study of automata from an engineering perspective and serves the purpose of controlling advanced hybrid systems [1] . The word itself is a portmanteau of “Mechanics” and “Electronics”.
电专业英语阅读教程01
大连理工大学出版社同名教材配套电子教案Specialty English《电专业英语阅读教程》（第二版）温丹丽高源制作大连理工大学出版社Unit One Foundation of Electricity ▪Passage One The History Of Electricity▪Passage Two Electric Circuit▪Passage Three Thevenin’s & Norton’s Theorem▪Passage Four Digital Circuits▪Passage Five Operational Amplifiers▪专业英语语言结构特点Passage One The History Of Electricity Training target: In this part, our target is to train your reading comprehension. We have made the flexible sentences strong black and marked the subject, predicate and object of them. Try to grasp the main idea of these sentences.Speciality Vocabulariesstatic静电的；静止的；静态的magnetism磁；磁场；磁力electromagnet电磁铁；电磁体dynamo直流发电机armature电枢；转子commutator换向器；整流器filament灯丝polyphase多相的Notes:1 As early as the latter part of 16th century, experimenters were exploring the behavior of static electricity.2 Discovery of the presence of magnetism in certain rocks preceded the earliest knowledge of electricity.Passage One The History Of ElectricityNotes:3 The voltaic cell was one of the most important discoveries in the history of the electrical art, because it provided a continuous source of appreciable amounts of electric power at reasonably low voltage.4 The discovery of electromagnetic induction by Michael Faraday in 1831 established many principles for modern machines.5 One of the first important developments based on the disclosures of Faraday was the electric dynamo.6 With the development of the high-resistance carbon filament lamp by Thomas Edison in 1880, the DC generator became one of the essential components of the constant-potential lighting system.7 The first transformer was announced in 1883. This device probably did more to revolutionize that the systems over the low-voltage high-current systems of power transmission were well known.Passage One The History Of Electricity.Text.As early as the latter part of16th century,experimenters were exploring the behavior of static electricity.W.Gilbert experimented with electric charges and discharges.In1750 Benjamin Franklin proved that lightning was electrical in nature.Neither investigator,discovered anything that was significant from the standpoint(standpoint观点)of electricity.Discovery of the presence of magnetism in certain rocks preceded the earliest knowledge of electricity.Such knowledge was common about600 B. C.Applications of electrical knowledge were completely absent in this era.Passage One The History Of Electricity In1800A.Volta discovered the principle of the electric battery.The voltaic(voltaic伏打的)cell was one of the most important discoveries in the history of the electrical art,because it provided a continuous source of appreciable amounts of electric power at reasonably low voltage.It was an essential,component of the early communication systems,such as the telephone and telegraph.The first United States′patent on the electrical telegraph was obtained by J. Groat in1800.The invention of a practical electromagnet was announced by Joseph Henry in1827.These inventions by Groat and Henry opened the way for a still more significant invention,the electromagnetic telegraph.The principle of this forerunner of the communications industry was conceived in 1831,proven practical in1837,and patented in1840by Samuel.F.B.Morse.Passage One The History Of ElectricityFew developments have had greater impact on American life than Morse′s invention. His idea paved the way for the first system of electrical communication;his in turn led to the telephone and later to the wireless telegraph.The discovery of electromagnetic induction by Michael Faraday in1831 established many principles for modern machines.Motors,generators, transformers(transformer变压器),and many other electrical devices found in heavy electrical industry were made possible by the discoveries of Faraday.The contributions of Faraday in the electrical power industry are comparable to those of Morse in the field of communications.One of the first important developments based on the disclosures of Faraday was the electric dynamo.English patent No.1858describes the principle of operation.In the following years many types of DC generators were developed and used commercially.The gramme-ring armature was one of the first used in conjunction with a commutator.This machine was somewhat inefficient,but it provided a source of relatively high voltage at a reasonably large power capacity(up to100kW).Passage One The History Of ElectricityWith the development of the high-resistance carbon filament lamp by Thomas Edison in1880,the DC generator became one of the essential components of the constant-potential lighting mercial lighting residential lighting became practical and the electric light and power industry were born.One of the most common uses for direct current during this period was for street lighting.（street lighting街道照明）.The first transformer was announced in1883.This device probably did more to revolutionize that the systems over the low-voltage high-current systems of power transmission were well known.Following the discovery of the transformer,power could be generated at low voltages,transformed to higher voltages for transmission over great distances(several hundred miles), and then reduced by transformers to lower values for utilization.Passage One The History Of Electricity In1888N.Tesla was granted a patent(patent专利)on the polyphase AC induction motor,which soon became the most commonly used motor for supplying large amounts of power in its improved state.It is most extensively used today.In1876Alexander Graham Bell invented the telephone.This device was soon put into use and,as a result,anther huge industry was established.OVERPassage Two Electric CircuitTraining target: In this part, our target is to train your reading speed; you should pay more attention to “word group”. Treating a group of words as a whole unit is a short cut to save your time. We have underlined the word groups in some sentences, and the rest can be practiced by yourself. If there are some new words, you may cover the note area with a piece of paper and try to guess their meaning without using the dictionary.Speciality Vocabulariesvoltage source电压源current source电流源potential difference(p.d)电势差potential drop电压降；电势降voltage drop电压降Ohm’s Law欧姆定律Notes:1 The diagram of Fig.1.1 illustrates the essential parts of an electric circuit , which consists, in its simplest form , of an energy source and interconnected energy dissipation or conversion device, known as the load .Passage Two Electric CircuitNotes:2 These are: the voltage source and the current source. The voltage source maintains a constant terminal voltage irrespective of the current supplied to the load. It is important to appreciate that the voltage may be a function of, for example, time, temperature, pressure etc. It is constant only with respect to variations of load.4 The current source maintains a constant current in the load irrespective of the terminal voltage which, in this case, is determined by the magnitude of the load .As with the voltage source, the generated current may depend on many other factors, but its one essential attribute is its independence of load.5 All practical passive devices possess energy dissipative properties, often accompanied by energy –storage properties so that three distinct idealized types are possible.6 (a)The resistance parameters: A circuit, which dissipates energy but stores none is said to consist solely of resistance.(b) The inductance parameter: A circuit is said to posses inductance if it is able to store magnetic field energy.(c)The capacitance parameter: A circuit which is able to store electrostatic field energy is said to possess capacitance.Passage Three Thevenin’s & Norton’s TheoremTraining target: In this part, you should try your best to form good reading habits .In order to avoid your ill habits such as regression, you should keep reading the paragraphs from the beginning to the end without stopping.Speciality VocabulariesThevenin’s theorem戴维南定理Norton’s theorem诺顿定理two-terminal network二端网络emf(electromotive force)电动势internal resistance内阻open-circuit开路short-circuit短路constant-voltage source恒压源in parallel with与…并联active network有源网络Text:Thevenin’s theorem states that: A two-terminal network can be replaced by an equivalent circuit of an emf in series with a resistance . The value of the emf is equal to the open-circuit voltage of the original circuit. The series resistance is resistance the value measured back into the original circuit with all sources replaced by their internal resistances. .Passage Three Thevenin’s & Norton’s TheoremThe two-terminal network of Fig.1.4(a)has a particular voltage measured across the terminals when the load is disconnected.When the load resistance,RL,is connected to the terminals,the load voltage is different than the noload voltage.We also find that the load voltage changes for different values of load.We can compute values for this circuit easily if we from an equivalent circuit for this two-terminal network.The equivalent circuit is not necessarily the actual internal circuit of the two-terminal network.We do not need to know the actual contents of the two–terminal network.A load resistance placed across the terminal of the equivalent circuit must yield the same current and voltage values obtained when this load resistance is placed across the terminals of the original circuit.Let us assume that the actual internal circuit of the two-terminal network of Fig.1.4 (a) is the circuit shown in Fig.1.4 (b).Passage Three Thevenin’s & Norton’s TheoremFig 1.4 Thevenin’s theorem(a) two-terminal network with a load; (b) actual internal circuit of the two-terminal network; (c) equivalent circuit; (d) determination of RPassage Three Thevenin’s & Norton’s TheoremThevenin’s theorem states that this active network,containing an emf,may be replaced by an equivalent circuit [Fig.1.4(c)]comprised of an emf ,E,in series with a resistance ,R ,The emf,E,of this equivalent circuit is the open-circuit voltage of the original circuit measured when the load,R L ,is disconnected.The resistance,R,is the resistance of the original circuit looking back into the circuit with the source of emf set to zero.If this emf has an internalresistance,the internal resistance must be included in this calculation of R.To determine the equivalent circuit by Thevenin’s theorem,both E and R must be evaluated.Referring to Fig.1.4(b),it is evident that the current through R c equals zero if the load is removed completely.The noload voltage measured across the terminals A and B is the same as the voltage drop across R B .The resistors R A and R B ,merely act as a voltage divider across E’.The no-load voltage E required for Thevenin’s theorem is determined by the voltage divider rule .If the source emf is removed,we have the network shown in Fig.1.4(d).R is theresistance value measured between the terminals A and BA B c A B R R R R R R =++Passage Three Thevenin’s & Norton’s TheoremNorton’s theorem states that:A two-terminal network can be replaced by an equivalent circuit of constant-current source in parallel with a resistance.The value of the constant-current source is the short-circuit current developed when the terminals of the original network are shorted.The parallel resistance is the resistance value measured back into the original network.The usual constant-current source considered in network theory has the form shown in Fig.1.5.The constant-current source delivers an output current,in this case, of2A at all times.Its internal resistance of10Ωis in parallel with the constant-current source.Fig. 1.5 A constant-current sourcePassage Three Thevenin’s & Norton’s TheoremIf there is no physical loading across the terminals A and B,all the current flows through this parallel resistance.By Ohm’s law,the open-circuit voltage(the no-load terminal voltage)is2×10,or20V.When an external load is placed across the terminals A and B, the constant current divides between the two parallel resistances.For example,if the load, RL,is10Ω,the2A source current divides equally,giving a load current of1A.The circuit voltage is now10V.If RL is zero,that is,if a short-circuit is placed across A and B,the full current of2A is the current in the short circuit.Now the load voltage is zero.This discussion suggests that this model of a constant-current source has a correspondence to the equivalent circuit by Thevenin’s theorem.Fig.1.6(a)shows a constant-current source, I in parallel with an internal resistance,R.The noload voltage across the terminals is E, given by IR.When the terminals are shorted,the short-circuit current is I.Examine the equivalent circuit by Thevenin’s theorem using these values of E and R,Fig.1.6(b).The no-load open-circuit voltage is E,and rhe short-circuit current is E/R,which is the same value as the constant-current source.Passage Three Thevenin’s & Norton’s TheoremAssume that I is 2A and R is 10Ω[Fig .1.6(a)].The open-circuit voltage is 20V .If a 10Ωload is placed across the terminals ,the load current is half the value of the current in the source ,or 1A .The load voltage,by Ohm’s law,is,or 10V .Now,assume that E 20V and R is 10Ωin Fig.1.6(b).If a 10Ωload is placed across the terminals ,the current is 20/(10+10),or 1A ,and the load voltage is ,or 10V.In this manner,we demonstrate that the two equivalent circuits perform identically.If we have one equivalent circuit,we can obtain the other very simply,since R=R and E=IR.Fig.1.6 Equivalent of network theorem (a) Norton’s theorem; (b) Thevenin’s theoremPassage Four Digital CircuitsTraining target:In this part,our target is to train your reading comprehension.When reading this passage,pay attention to the questions.What is a digital electronic system ?An electronic system is an orderly collection of interacting electronic building blocks that performs a desired task. A digital electronic system performs the tasks by dealing with discrete quantities. Discrete quantities are integral, fractional, or mixed numbers that represent, to the nearest least significant digit, some quantities in the real world such as temperature, pressure, or distance. In contrast there are analog electronic systems that represent these quantities on a continuous scale.In digital electronic systems,information is represented by binary digits,bits,A bit may assume either one of two values;0or1.A mathematical system that uses only tow digits is called a binary system;its foundations were laid by the British Mathematician George Boole(1815~1864) in his classic treatise An Investigation of the Laws of Thought(1854).The invention of the transistor may be viewed as another major breakthrough in digital information processing.The volume occupied by a transistor is about one hundredth of that occupied by either a relay or a vacuum tube,and a similar ratio holds for the power dissipated by the devices under comparison.The transistor also provided the technological base for the development of integrated circuits,an ensemble of many transistors that are interconnected to perform a specified function.Passage Four Digital CircuitsThe first integrated circuit was developed in1958,which is a start of a revolutionary change in the art of electronics design.In the initial stages of semiconductor technology development,the devices were classified as either discrete or integrated.A digital integrated circuit consisted of several transistors and sometimes also of passive components resistors and capacitors on a semiconductor substrate that were interconnected to perform a logical function.What is the integrated circuit?Such logical function implementing simple logic operations provided the building blocks for the realization of switching networks.Further advances in technology enabled fabrication of many transistors on one semiconductor substrate.The level of complexity increased,broadening the scope of circuits contained in one package.These new circuits could count,perform addition, subtraction,or multiplication of two binary digits,compare their binary values,and realize more complex logical operations.Digital circuits are being used in such diverse fields as information storage,medical instrumentation,process control,calculators and computers,air traffic,digital communications, and in voice and tone synthesis.Digital techniques are also beginning to be used in areas that traditionally applied analog techniques.For example,assume we desire to send temperature information from point A to point B in an industrial plant.Also assume that the information is in form of an analog voltage that is proportional to the value of the temperature that we desired to transmit.Passage Four Digital CircuitsThe transmission medium may be a cable or a modulated radio-frequency wave.In either case the transmission is not immune to interference that modifies the content of the transmitted message. Suppose that an accuracy of one part in1000is desired.This implies that the interference must be kept below one thousandth of the transmitted(analog0quantity to satisfy our accuracy specifications.This may be difficult to realize in an industrial environment in which ample electric interference(noise)is generated by motors,arc welding,relays,and the like.On the other hand that same information about temperature may be transmitted in digital form. Such digital transmission uses the binary system,which presents information in form of a pulse train that is suitably coded.Here we are concerned only whether during a certain time interval the pulse is ON or OFF.Modification of the ON or OFF pulses resulting from environmental inference must be very substantial to change the information content of the transmission.Thus the digital system is much more immune to interference and is more likely to be used in many applications in which an analog system would be inadequate.Passage Five Operational AmplifiersTraining target: Read the following reading materials, and use the reading skills mentioned in the passages above. You may also choose some parts of thispassage to practice.Part AThe modern development of integrated circuit (ICs) has made the operationa l amplifier (op amp) the single most important component in analog instrumentation. It is an amplifier characterized by very high gain, high input impedance, and low output impedance. Usually the gain is lowered by external circuitry including negative feedback. I n addition to bringing the gain to a precisely desired value, negative feedback improves the overall behavior of the amplifier.Fig.1.7 (a) basic operational amplifier; (b) the op amp without feedbackPassage Five Operational AmplifiersThe basic configuration of an op amp with its necessary external components is shown in Fig.1.7(a).The boxes marked “input”and “feedback”circuits are usually made up of resistors and capacitors,but other devices may be incorporated on occasion.The op amp itself is symbolized by a triangle provided with two inputs, marked with plus (+) and minus (-), and a single output .A Typical unit is limited in output to perhaps 10-mA current and +10V .It is zero-crossing, meaning that its output can swing in both positive and negative senses, with zero input giving zero output. The output voltage is proportional to the difference between the potentials at the two inputs, according to the relationship E out = A (E +-E _) (1.17) where E +and E -are the potentials at the correspondingly marked inputs and A is the inherent gain.专业英语语言结构特点专业英语文体严谨周密，概念准确，逻辑性强，行文简练，重点突出，句式严整，少有变化，常用前置性陈述，即在句中将主要信息尽量前置，通过主语传递主要信息。
机电英语(教育部07版专业英语)Unit 6 Electrical Engineering
当不只是一种交流电动机可供挑选使用时， 当不只是一种交流电动机可供挑选使用时， 成本便成了很重要的考虑因素。 成本便成了很重要的考虑因素。
Paragraph 5
鼠笼式电动机
The squirrel-cage motor is the least expensive ac motor of the three types considered and requires very little control equipment.
Paragraph 5
当非常大功率的机器被涉及时
When very large machines are involved, as, for example, 1000 hp or
成本图画（情况） 成本图画（情况） 像 比如 1000HP或者更高 或者更高
over, the cost picture may change considerably and should be checked
然而，对于那些需要调速或速控范围较广的机床或其他机器而言，安装直流电动机， 然而，对于那些需要调速或速控范围较广的机床或其他机器而言，安装直流电动机， 并通过电动机-发电机组或者电子整流器从交流点系统向其提供电能是较为理想的做法 发电机组或者电子整流器从交流点系统向其提供电能是较为理想的做法。 并通过电动机 发电机组或者电子整流器从交流点系统向其提供电能是较为理想的做法。 它是较为理想的(做法 它是较为理想的 做法) 做法 但是， 但是，如果有机床或其他电器
The various types of single-phase ac motors and universal motors are used very little in industrial
机械专业英语阅读教程
机械专业英语阅读教程Mechanical engineering is a field that requires a solid understanding of both theoretical principles and practical applications. The study of mechanical engineering in Englishis essential for students who wish to engage with the global community of engineers and researchers. This tutorial aims to provide a comprehensive guide to reading mechanical engineering materials in English, focusing on key concepts, terminology, and strategies for effective learning.Introduction to Mechanical Engineering ReadingMechanical engineering encompasses a wide range of topics, from dynamics and thermodynamics to materials science and control systems. Reading materials in this field ofteninclude textbooks, research papers, and technical manuals. To effectively read and understand these materials, it'simportant to have a strong foundation in English vocabulary and grammar specific to the field.Understanding TerminologyOne of the first steps in mastering mechanicalengineering reading is to become familiar with thespecialized terminology. Terms such as 'kinematics','statics', 'mechanical systems', and 'fluid dynamics' are common and must be understood to grasp the concepts discussed in texts. Building a glossary of terms and regularlyreviewing them can be beneficial.Reading Strategies1. Pre-reading: Before diving into the text, scan through the headings, subheadings, and any illustrations to get a general idea of the content.2. Active Reading: Engage with the text by taking notes, underlining key points, and summarizing sections in your own words.3. Critical Reading: Analyze the author's arguments and the evidence presented. Consider the implications of the information and how it relates to other concepts you've learned.4. Post-reading: Reflect on the material by discussing it with peers or writing a summary. This helps consolidate your understanding.Technical Writing SkillsUnderstanding how to read mechanical engineering texts also involves recognizing the structure and style oftechnical writing. This includes:- Abstracts: Brief summaries of research papers that highlight the main findings.- Introductions: Sections that provide backgroundinformation and the purpose of the study.- Methods: Descriptions of how experiments or studies were conducted.- Results: Presentation of data and findings.- Discussion: Analysis of the results and their significance.- Conclusions: Summaries of the study's implications and suggestions for future research.Using Reference MaterialsReference materials such as dictionaries, encyclopedias, and online resources are invaluable when reading in English. They can provide definitions, examples, and further explanations of concepts and terms.Building VocabularyA robust vocabulary is crucial for reading comprehension. Regularly learn new words and their usage in context. Flashcards, vocabulary apps, and word-a-day calendars can be useful tools.Practice and ApplicationThe more you read, the better you become. Apply whatyou've learned by discussing mechanical engineering topics inEnglish, writing summaries, and participating in online forums.ConclusionReading mechanical engineering materials in English is a skill that can be developed with practice and dedication. By understanding the terminology, employing effective reading strategies, and utilizing reference materials, students can enhance their comprehension and contribute meaningfully to the global mechanical engineering community.。
机械类专业英语阅读教程
机械类专业英语阅读教程In the realm of mechanical engineering, the language of precision and efficiency is paramount. English, as a global lingua franca, plays a crucial role in facilitating technical communication and collaboration across borders.The study of mechanical engineering is not just about understanding complex systems and their components; it also involves mastering the specialized terminology that engineers worldwide use to describe these systems. This tutorial aims to bridge the gap between the theoretical knowledge and the practical application of English in the field.Reading materials in this course have been carefully curated to reflect the diversity of topics within mechanical engineering, from basic principles to cutting-edge research. Each chapter is designed to enhance the reader's comprehension and vocabulary, while also providing insights into the latest industry trends.To truly grasp the concepts discussed in mechanical engineering texts, one must not only understand the words but also appreciate the context in which they are used. This tutorial will guide you through the nuances of technical language and help you develop the critical thinking skills necessary to interpret complex information.As you progress through the lessons, you will encountervarious types of texts, including case studies, technical specifications, and research papers. Each type requires a different approach to reading and understanding, and this course will equip you with the tools to navigate them effectively.In addition to reading comprehension, this tutorial will also focus on the development of writing skills. You will learn how to construct clear and concise sentences, organize information logically, and present your ideas persuasively.The ultimate goal of this course is to empower you with the English proficiency necessary to excel in the global mechanical engineering community. Whether you are a student, a professional, or an enthusiast, this reading tutorial will serve as a solid foundation for your journey in this dynamic field.By the end of this tutorial, you will have gained not only a deeper understanding of mechanical engineering concepts but also the ability to communicate them effectively in English. This will open doors to international opportunities and allow you to contribute to the ever-evolving world of mechanical engineering.。
英文机电产品维修指南阅读报告
英文机电产品维修指南阅读报告Reading Report on the Maintenance Guide for Electromechanical Products.In the realm of electromechanical engineering, the significance of proper maintenance and repair cannot be overstated. As technology continues to advance, so does the complexity of electromechanical systems, making it imperative for professionals to stay updated with thelatest maintenance procedures. This reading report aims to delve into the intricacies of an English-language electromechanical product maintenance guide, highlighting key takeaways and insights.The guide begins with a comprehensive introduction to electromechanical systems, defining their components and functions. It goes on to explain the principles of operation and the working mechanisms of various electromechanical devices. This section is crucial for those seeking to understand the fundamentals of thesesystems and how they fit into the larger picture of industrial and mechanical operations.The guide then delves into the maintenance aspect, focusing on preventive measures and regular checks. It emphasizes the importance of routine inspections, lubrication, and adjustments to ensure optimal performance and prolong the lifespan of electromechanical products. This section also covers troubleshooting techniques, guiding readers through common issues and their corresponding solutions.One of the most interesting aspects of the guide is its detailed section on advanced maintenance procedures. Here, the author delves into more complex issues such as electronic component replacement, motor repairs, and adjustments to mechanical assemblies. This section is particularly beneficial for those working in the field of electromechanical maintenance, as it provides a step-by-step approach to handling complex repair jobs.The guide also covers safety measures and bestpractices when working with electromechanical systems. It emphasizes the importance of using the right tools, following safety procedures, and seeking professional help when needed. This section is crucial, as it reminds us of the inherent dangers associated with working with electromechanical systems and the need to prioritize safety above all else.Overall, this electromechanical product maintenance guide is an invaluable resource for professionals in the field. It provides a comprehensive overview of electromechanical systems, their principles of operation, and maintenance procedures. The guide also covers troubleshooting techniques and advanced maintenance procedures, making it a one-stop shop for all electromechanical maintenance needs.Moreover, the focus on safety measures and best practices is commendable, as it reminds us of the importance of prioritizing safety when working with electromechanical systems. This aspect is often overlooked but is crucial in ensuring the safety of both the operatorand the equipment.In conclusion, this reading report highlights the key takeaways and insights from an English-language electromechanical product maintenance guide. The guide covers everything from the basics of electromechanical systems to advanced maintenance procedures and safety measures, providing a comprehensive resource for professionals in the field. It is an essential tool for those seeking to stay updated with the latest maintenance practices and ensure the smooth operation of electromechanical products.。
机电产品安装维修指南阅读报告英文版
机电产品安装维修指南阅读报告英文版Report on Reading the Installation and Maintenance Guide for Electromechanical ProductsI. IntroductionThe installation and maintenance guide for electromechanical products is an essential resource for understanding the installation procedures and maintenance requirements of different types of electromechanical products. This report aims to provide a summary of the key points covered in the guide, focusing on the general principles applicable to most products.II. Overview of the GuideThe guide is divided into several sections, including an introduction to electromechanical products, pre-installation requirements, installation procedures, troubleshooting and maintenance, and safety precautions. Each section contains detailed instructions and guidelines to ensure effective installation and maintenance of the products.III. Key Points Discussed1. Introduction to Electromechanical Products- Definition: Electromechanical products refer to devices that combine both electrical and mechanical components to perform specific tasks.- Examples: Common electromechanical products include elevators, escalators, air conditioning systems, and industrial machinery.- Importance of proper installation: Proper installation ensuresoptimal performance, longevity, and safety of the products.2. Pre-Installation Requirements- Site inspection and preparation: Before installation, conducting a thorough site inspection is crucial to identify potential challenges, such as space limitations, power requirements, and environmental considerations.- Necessary tools and equipment: The guide provides a comprehensive list of tools and equipment required for installation, ensuring that installers have everything they need before beginning the process.- Building permits and regulations: Compliance with local building permits and regulations is emphasized to ensure the installation is carried out legally and in line with safety standards.3. Installation Procedures- Step-by-step instructions: The guide provides detailed step-by-step instructions and illustrations, demonstrating the correct sequence of tasks required for installation.- Alignment and calibration: In many cases, proper alignment and calibration are essential for the product's correct functionality. Detailed procedures are provided to ensure accurate alignment and calibration.- Electrical connections: Instructions for electrical connections, including power supply, grounding, and wiring, are given in the guide to guarantee safe and efficient functioning of the products.4. Troubleshooting and Maintenance- Common issues and solutions: The guide includes a troubleshooting section that identifies common issues that mayarise after installation. It provides a range of possible solutions for each issue, enabling installers to address problems effectively.- Regular maintenance procedures: Regular maintenance is emphasized to prevent potential breakdowns and ensure the product operates at its optimal efficiency. The guide provides maintenance schedules and procedures specific to each product type.5. Safety Precautions- Safety guidelines: The guide places significant importance on safety precautions to protect installers, users, and the product itself. It covers topics such as personal protective equipment, electrical safety, and fire prevention measures.- Emergency situations: The guide outlines emergency procedures for unexpected situations, such as power failures and natural disasters, to ensure the safety of the installers and users.IV. ConclusionThe installation and maintenance guide for electromechanical products provides valuable information and instructions for installers and maintenance personnel. By following the guidelines presented in the guide, practitioners can ensure the proper installation, troubleshooting, and maintenance of electromechanical products, leading to their efficient performance, longevity, and user safety.。
机电英语 Unit 6
Section Ⅰ Speaking and Listening
Directions: Translate the following sentences into English.
Unit 6
PRAT
01
你说我们没有牛奶了是什么 意思，我昨天刚买了一些。
PRAT
02
Michael，你走得太快了， 我累了，等我一会。
Listening
Unit 6
短文听力理解（一）
一、短文的选材范围、特点和命题形式 PRETCO听力部分的短文一般为讲话、叙述、解说、新闻报道等，其内容多种多样，可以是文化、教 育、城市污染、住房、交通、卫生、能源短缺、人口增长等社会问题，也可以是英美等国家的风土人情、 历史地理、政治、体育、人物传记，还可以采用实用性内容，如：接待、业务咨询、了解信息、业务指 导、新闻、气象、广告、推销、人物采访等。短文的长度一般为150个单词左右，单句长度一般不超过 20个单词。短文后有五个与短文内容相关的问题，一般为特殊疑问句，所问问题多为细节题，所问内容 涉及人名、时间、地点、年代、数字、原因、目的、主要情节等，也可以是中心思想判断题。要求考生 用英语简要地写出答案，试卷上也可能给出若干单词提示，要求考生把答king and Listening
Unit 6
What do you mean get up?
What do you mean…: If you understand the words someone said but you don't understand the whole meaning he just said, you may ask what do you mean…
Section Ⅰ Speaking and Listening
机电一体化专业英语Unit 9
____________
右手螺旋定则 _____________ 磁力线 ______________ 直线
Passage B Sheet Metal Forming
Function of Main Motor Parts 1. Produce Magnet Field Black-colored portions are permanent magnets that maintain magnetic force, and are fixed to a motor-housing. The motorhousing itself produces a magnetic circuit (a magnetic field) with a core (a green-colored portion) and the permanent magnets as a path for the magnetic force to flow (Fig. 9-13). 2. Provide Current Current enters the motor from one of the terminals (a portion sticks out forward). It flows to a winding (an orange-colored portion) via brushes (a brown-colored portion) and a commutator, and goes out of the motor from the other terminal via the brushes and the commutator (Fig. 9-14).
3. Magnetize Armature Wind the coil and flow the current so that the armature will be magnetized (Fig. 9-9). 4. To Keep Rotation To keep the armature running, the current direction should be changed so that the N-polarity stays at upper portion and S- polarity stays at under portion of the armature (Fig. 9-10).
机电专业英语U8 Reading
○ strong will
○ knowledgeable
○ a large social circle
○ ability to handle crisis and cope with difficulties
○ ability to communicate effectively
Task 3 Before reading the passage, try to answer the questions about niche marketing and after-sales service.
Task 2 The following sentences are the topic sentences of the
paragraphs. Read the passage and fill in the blanks.
Paragraph 1: Doosan Infracore is 1__m_a_k_i_ng__in_r_o_ad_s_i_n_to
Task 3 Read the passage again and choose the best answer to each
question.
1. Doosan Infracore’s success in China’s market can be attributed to the following marketing strategies except ____ A. the localization strategy
Doosan Infracore, a manufacturer of construction equipment specializing in excavators and wheel loaders, is making inroads into the Chinese machine tool market. Since its first entry into the Chinese market in 1996, Doosan Infracore has made remarkable achievements based on its localization strategy, niche demand creation, technological innovation and nationwide sales and after-sales service network.
机电专业英语Unit 1 Reading
THANK YOU
orders. Arrange them in the order of time and explain.
a. show the product line to the client b. make an inquiry, offer and counter- offer c. make an appointment with the client d. sign the contract e. introduce his company to the client
4. The fields in which the company is in the leading level:
Mold design, thermoplastic fine inching control, PVC low foam technology, WPC raw material formulas and extrusion operation techniques.
Reading: A Company Introduction
Task 1 As a marketing assistant, Wang Ning may experience the following
situations. Match each situation with its corresponding picture.
Reading
An experienced professional extrusion mold manufacturer, we have created our own unique extrusion integrated system. We are leaders in the field of mold design, thermoplastic fine inching control, PVC low foam technology, WPC raw material formulas and extrusion operating techniques.
机电102、机电102 -杨宏-2011-2012-2科技英语阅读-2
[12]Electrons flow from the cathode to the anode through the circuit, but standard convention assumes that current flows in the opposite direction． 电子从阴极经过电路流向阳极，但传统习 惯约定电流流动的方向与电子运动的方向 相反。
[8]Some simple examples of valid circuits are shown in Fig.5.1． 图5-1中给出了几种实用电路的简例。
[9]The terminology and current flow convention used in the analysis of an electrical circuit are illustrated in Fig.5.2． 图5-2说明在分析电路时所使用的术语和电 流流过方向的约定。 [10The voltage source，which provides energy to the circuit，can be a power supply, battery，or generator． 向电路提供能量的电压源可以是电源、电 池或发电机。
[6]An electrical circuit is a closed loop consisting of（3） several conductors connecting electrical components． 电路是一个由若干连接电子器件的导线 所组成的闭合回路。 [7]Conductors may be interrupted by components called switches． 导线可以由称为开关的元件断开。
机电英语(教育部07版专业英语)Unit 7-Industrial Robot
.通常，数控编程是脱机完成的，指令载于穿孔带上。 通常，数控编程是脱机完成的，指令载于穿孔带上。
Paragraph 2
Robot programming has usually been accomplished on-line, with the on（主语补足语）伴随着其指令被存储于机器人的电子存储器中 主语补足语） . （主语）机器人编程 主语）
in response to： 对……作出反应，针对 to： ……作出反应 作出反应， 其可以减弱人性化的影响。 其可以减弱人性化的影响。 存在着很多尝试 去发展（机器人的） 去发展（机器人的）定义
.针对这种把机器人人性化的概念，人们一直在尝试重新给机器人下定义，以减弱其 针对这种把机器人人性化的概念，人们一直在尝试重新给机器人下定义，
.通过控制编程，机器人可完成一系列的机械动作，并按顺序不断重复相同的动作直 通过控制编程，机器人可完成一系列的机械动作，
到重新调整编程为止。 到重新调整编程为止。 一遍又一遍地直到被重新编程去完成一些其他工作
Paragraph 2
.工业机器人共有许多特性
An industrial robot shares many attributes
Attempts have been made to rename the
.尝试曾经被做出 .以重命名机器人
robot.
.人们也一直在尝试给机器人重新命名。 人们也一直在尝试给机器人重新命名。
Paragraph 6
George Devol, one of the original
（同位语）一位在机器人技术领域颇有创造性的发明家 同位语） 乔治。 乔治。迪洛尔
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素。
About two thirds of all elements found in the earth are metals, but not all metals may be used in industry.
processes involving cutting, shaping, machining, assembly[E5sembli] and decoration.
在某一温度下塑料是处于塑性状态的，这就使塑料具备超过许多其他材料的主要优点。它容许大量
生产单位成本低廉的模制式器件，例如，各种容器。于此，若用其他材料则需要大量劳力和往往需要很
Those metals which are used in industry are called engineering metals. The most important engineering metal
is iron[5aiEn], which in the form of alloys with carbon[5kB:bEn] and other elements, finds greater use than any
费钱的加工工艺，比如，切割、成形、加工、装配和装饰。
Plastics not only replace other materials. Their properties can be exploited[iks5plCit] for entirely[In5taIElI]
new applications. For example, plastics heart valves[vAlv] and other human 'spare parts' have make possible
many recent developments in surgery[5sE:dVEri].
塑料不仅可以代替其他材料，而且它的特性能被开拓应用于全新领域，比如：随着最近外科手术的
发展可能做成塑料的心脏瓣膜和其他人类的器官。
须把杂质从金属矿中分离出去，那就要靠冶炼来实现。
2 2. . P Pl la as st ti ic cs s a an nd d O Ot th he er r M Ma at te er ri ia al ls s
T Te ex xt t: :
Plastics[5plAstik, plB:stik] have specific properties which may make them preferable[5prefErEbl] to
simple metal. Metals have such a great importance because of their useful properties or their strength, hardness,
and their plasstics while plastics are very light, with a specific[spi5sifik] gravity normally between 0.9 and 1.8.
Most plastics do not readily[5redili] conduct[5kCndQkt] heat or electricity[Ilek5trIsItI]. Plastics soften slowly
other metal. Metals consisting of iron combined with some other elements are known as ferrous[5ferEs] metals;
all the other metals are called nonferrous[5nCn5ferEs] metals. The most important nonferrous metal are
machines and other engineering[7endVi5niEriN] constructions have metal[5metl] parts; some of them consist
only of metal parts.
众所周知，金属在我们的生活中是非常重要的，金属对于工业而言是有巨大的重要性，所有机器和
copper[5kCpE], aluminum[E5lju:minEm], lead[li:d], zinc[ziNk], tin[tin], but all these metals are used much
less than ferrous metals, because the ferrous metals are much cheaper.
ore[C:(r)] (iron ore, copper ore, etc[et cetra].)
以不同的方法生产不同的合金但是几乎所有的金属都是以金属矿的形式（铁矿、铜矿）被发现的。
The ore is a mineral[5minErEl] consistence of a metal combined with some impurities[im5pjuEriti]. In
第 第 1 12 2、 、1 13 3、 、1 15 5、 、2 20 0、 、
2 22 2 课 课的 的翻 翻译 译暂 暂时 时没 没有 有。 。
翻 翻译 译标 标准 准。 。请 请放 放心 心使 使
用 用。 。
第 第一 一课 课
T Te ex xt t: :
It is known that metals are very important in our life. Metals have the greatest importance for industry. All
该 该翻 翻译 译整 整理 理于 于网 网络 络， ，
但 但并 并不 不是 是用 用什 什么 么软 软件 件翻 翻译 译
的 的， ，而 而是 是一 一些 些专 专业 业老 老师 师翻 翻
译 译的 的， ，其 其中 中就 就包 包括 括我 我们 们学 学
校 校交 交专 专业 业英 英语 语的 的老 老师 师。 。
其他工程构造都有金属零部件，其中一些还只能由金属组成。
There are two large groups of metals:
1) Simple metal- more or less pure chemical elements[5elimEnt]
2) Alloys[5AlCi]- materials consisting of a simple metal combined with some other elements.
order to produce a metal from some metal ore, we must separate these impurities from the metal that is done
by metallurgy[me5tAlEdVi].
矿石是一种由金属与某些杂质相混合而组成的矿物质，为了用金属矿石来生产出一种金属，我们必
traditional materials[mE5tIErIEl] for certain uses. In comparison[kEm5pArisn] with metals, for example,
plastics have both advantages and disadvantages. Metals tend to be corroded[kE5rEud] by
面。而它可以跟塑料混合为一体。金属比大多数塑料刚性要好，而塑料则非常之轻，通常塑料密度在
0. 9-1. 8 之间。大多数塑料不易传热导电。塑料能缓慢软化，而当其还是在软的状态时，能容易成形。
It is their plasticity[plAs5tisiti] at certain temperatures[5temprItFE(r)] which gives plastics their main
在地球上发现的所有元素中， 大约三分之二是金属元素， 但是并不是所有的金属都能够用于工业上。
那些金属—我们用于工业上的金属—被称为工程金属，最重要的工程金属那就是铁，铁跟碳和其他元素
结合形成合金的那些金属比其他金属发现有更大用途。 铁与别的其他某些元素相结合而组成的金属称为
黑色金属，此外所有其他金属都称为有色金属，最重要的有色金属是---铜，铝、铅、锌、锡。但是使
因为合金的特性比纯金属的好，所以工程金属以合金的形式用于工业，只有铝以纯金属的形式被广
泛应用。金属因为具有强度、硬度和可塑性而发挥着特别重要的作用。
Different metals are produced in different ways, but almost all the metal are found in the forms of metal
advantages over many other materials. It permits the large-scale production of molded[mEuld] articles, such
as containers, at an economic unit cost, where other materials require laborious[lE5bC:riEs] and often costly
inorganic[7inC:5^Anik] acids[5AsId], such as sulphuric[sQl5fjuErik] acid and hydrochloric[7haidrEu5klC:rik]