电子信息工程专业英语复习题
电子信息工程专业英语教程_第5版 模拟试卷AB卷及答案
Technical English Test for Electronic Information EngineeringDepartment____________ Class___________ Name____________SECTION 1Fill in the blanks with proper terms (30 minutes).SECTION 2Translate the following passages into Chinese (40 minutes).1.Digital signal processing tasks can be performed by all processors. Specialized digital signalprocessors (DSPs), however, perform these tasks most efficiently and most quickly. While traditional processors follow the V on Neumann architecture model, which assumes a shared single memory to be used for both program instructions and data, DSPs use the Harvard or modified Harvard architecture, which includes multiple program and data memories, along with multiple buses to access them.2.The basic services that the IMT-2000 network is supposed to provide to its users are: 1.High-quality voice transmission. 2. Messaging (replacing e-mail, fax, SMS, chat, etc.). 3.Multimedia (playing music, viewing videos, films, television, etc.). 4. Internet access (Web surfing, including pages with audio and video).3.The image sensor employed by most digital cameras is a CCD. Some low-end cameras useCMOS technology. While CMOS sensors will almost certainly improve and become more popular in the future, they probably won't replace CCD sensors in higher-end digital cameras.4.Make sure the camera has the right resolution for your needs. If you are going to take snapshotsand e-mail them to friends, then you don't need anything more than 640x480 pixel resolution.Buying the resolution that you need lets you save money (and hard disk space). On the other hand, if you want to print enlarged versions of your photos, you'll need a 2-megapixel or 3-megapixel camera.SECTION 3Read the following passages and answer questions (30 minutes).Passage oneCD-quality audio requires a transmission bandwidth of 1.411 Mbps. Clearly, substantial compression is needed to make transmission over the Internet practical. For this reason, various audio compression algorithms have been developed. Probably the most popular one is MPEG audio, which has three layers (variants), of which MP3 (MPEG audio layer 3) is the most powerful and best known. Large amounts of music in MP3 format are available on the Internet, not all of it legal, which has resulted in numerous lawsuits from the artists and copyright owners. MP3 belongs to the audio portion of the MPEG video compression standard.Audio compression can be done in one of two ways. In waveform coding the signal is transformed mathematically by a Fourier transform into its frequency components. The amplitude of each component is then encoded in a minimal way. The goal is to reproduce the waveform accurately at the other end in as few bits as possible.The other way, perceptual coding, exploits certain flaws in the human auditory system to encode a signal in such a way that it sounds the same to a human listener, even if it looks quite different on an oscilloscope. Perceptual coding is based on the science of psychoacoustics—how people perceive sound. MP3 is based on perceptual coding.The key property of perceptual coding is that some sounds can mask other sounds. Imagine you are broadcasting a live flute concert on a warm summer day. Then all of a sudden, a crew of workmen nearby turns on their jackhammers and start tearing up the street. No one can hear the flute any more. Its sounds have been masked by the jackhammers. For transmission purposes, it is now sufficient to encode just the frequency band used by the jackhammers because the listeners cannot hear the flute anyway. This is called frequency masking—the ability of a loud sound in one frequency band to hide a softer sound in another frequency band that would have been audible in the absence of the loud sound. In fact, even after the jackhammers stop, the flute will be inaudible for a short period of time because the ear turns down its gain when they start and it takes a finite time to turn it up again. This effect is called temporal masking.Answer the following questions within 50 words. Q1:Why is audio compression needed?Q2: What is mp3?Q3: What does the word psychoacoustics mean?Q4: What is the aim of waveform coding?Q5: What is perceptual coding?Passage TwoAlthough over 50 years old, the standard television signal is still one of the most common way to transmit an image. Figure 1 shows how the television signal appears on an oscilloscope. This is called composite video, meaning that there are vertical and horizontal synchronization (sync) pulses mixed with the actual picture information. These pulses are used in the television receiver to synchronize the vertical and horizontal deflection circuits to match the video being displayed. Each second of standard video contains 30 complete images, commonly called frames. A video engineer would say that each frame contains 525 lines, the television jargon for what programmers call rows. This number is a little deceptive because only 480 to 486 of these lines contain video information; the remaining 39 to 45 lines are reserved for sync pulses to keep the television's circuits synchronized with the video signal.Determine the following statement is true (T) or false (F):No. T/F StatementQ6: ( )The term composite video is an alias of standard television signal.Q7:( )There are more than one methods for video transmission mentioned in this passage.Q8:( )The composite video is a combination of frames, picture information and sync pulses.Q9:( )The number 30 frames/second is a little deceptive.Technical English Test for Electronic Information EngineeringDepartment____________ Class___________ Name____________SECTION 1Fill in the blanks with proper terms (30 minutes).SECTION 2Translate the following passages into Chinese (40 minutes).5.While traditional processors follow the V on Neumann architecture model, which assumes ashared single memory to be used for both program instructions and data, DSPs use the Harvard or modified Harvard architecture, which includes multiple program and data memories, along with multiple buses to access them. This arrangement means that much less waiting is required when instructions or numbers are fetched from memory.6.ITU recommended that all governments reserve spectrum at 2 GHz so devices could roamseamlessly from country to country. Later, it was recognized that 2 Mbps is not currently feasible for users who are too mobile (due to the difficulty of performing handoffs quickly enough) .7.Just like a conventional camera, a digital camera has a series of lenses that focus light to createan image of a scene. But instead of focusing this light onto a piece of film, it focuses it onto a semiconductor device that records light electronically. A microprocessor then breaks this electronic information down into digital data.8.Make sure the lens will handle the pictures you plan to take. If you don't have the right lens, itcan be hard to take the best pictures. For example, if very crisp detail is important in your pictures, you'll probably want a high optical zoom number. Be sure to try out the lens system ona camera before you purchase it. Digital cameras come with a huge variety of lenses, so be sureto shop around.SECTION 3Read the following passages and answer questions (30 minutes).Passage oneNature moves in the form of a sine wave, be it an ocean wave, earthquake, sonic boom, explosion, sound through air, or the natural frequency of a body in motion. Energy, vibrating particles and other invisible forces pervade our physical universe. Even light–part particle, part wave–has a fundamental frequency, which can be observed as color. Sensors can convert these forces into electrical signals that you can observe and study with an oscilloscope. Oscilloscopes enable scientists, engineers, technicians, educators and others to “see” ev ents that change over time.Oscilloscopes are indispensable tools for anyone designing, manufacturing or repairing electronic equipment. In today’s fast-paced world, engineers need the best tools available to solve their measurement challenges quickly and accurately. As the eyes of the engineer, oscilloscopes are the key to meeting today’s demanding measurement challenges.The usefulness of an oscilloscope is not limited to the world of electronics. With the proper transducer, an oscilloscope can measure all kinds of phenomena. A transducer is a device that creates an electrical signal in response to physical stimuli, such as sound, mechanical stress, pressure, light, or heat. A microphone is a transducer that converts sound into an electrical signal.Oscilloscopes are used by everyone from physicists to television repair technicians. An automotive engineer uses an oscilloscope to measure engine vibrations. A medical researcher uses an oscilloscope to measure brain waves. The possibilities are endless.Answer the following questions within 50 words.Q1: Are oscilloscopes signals sources? Why not?Q2: Does the word “demanding” mean difficult or easy?Q3: How can an oscilloscope measure the temperature change over time? Q4: What function does a sensor or a transducer perform?Q5: Please give the reason why oscilloscopes are regarded as the eyes of engineers?Passage TwoAlthough over 50 years old, the standard television signal is still one of the most common way to transmit an image. Figure 1 shows how the television signal appears on an oscilloscope. This is called composite video, meaning that there are vertical and horizontal synchronization (sync) pulses mixed with the actual picture information. These pulses are used in the television receiver to synchronize the vertical and horizontal deflection circuits to match the video being displayed. Each second of standard video contains 30 complete images, commonly called frames. A video engineer would say that each frame contains 525 lines, the television jargon for what programmers call rows. This number is a little deceptive because only 480 to 486 of these lines contain video information; the remaining 39 to 45 lines are reserved for sync pulses to keep the television's circuits synchronized with the video signal.Determine the following statement is true (T) or false (F):No. T/F StatementQ6: ( )The term composite video is an alias of standard television signal.Q7:( )There are more than one methods for video transmission mentioned in this passage.Q8:( )The composite video is a combination of frames, picture information and sync pulses.Q9:( )The number 30 frames/second is a little deceptive.Q10:( )The sync pulses are used to control the deflection circuits in the TV receivers.Page 11 of 12Page 12 of 12。
电子信息工程 专业英语
1.Translate the following phrases into English.电子技术:Electronic Technology音频信号:Audio signal真空二极管:vacuum diode 半导体材料: semiconductor material分立元件:discrete component 大规模集成电路:large -scale integration circuit 电气触电:electrical contact 非线性特征: nonlinear characteristic运算放大器:operational amplifier 稳压器: voltage regulator反馈电路:feedback circuit 同相输入:non-inverting input 模拟计算机:analog computer 双列直插:dual-in-line正弦波振荡器:sinusoidal oscillator 张弛振荡器:relaxation oscillator数模转换: digital-to-analog converter信号处理:signal processing实时处理系统:real time processing system仿真器:emulator 存储单元:storage location数字滤波器:digital filter 传感器:transducer2.Translate the following phrases into Chinese.Electromotive force电动势; nonlinear resistor非线性电阻器; magnetic field磁场; dielectric constant介电常数; electric charge电荷;Information source信息来源; communication channel通信信道; message destination消息目的地; sensing element敏感元件;Natural frequency自然频率; reversible effect可逆效应; mutual inductance互感; address generator地址发生器; optical fiber光纤;Noise source噪声来源; Asynchronous transfer mode异步传输模式; negative feedback消极的反馈; alternating voltage交流电压;Sensitive measuring circuit敏感的测量电路; variable resistor可变电阻器; induced emf感应电动势3.Translate the following sentences into Chinese.①Electronics is a field of engineering and applied physics dealing with the design andapplication of devices, usually electronic circuits, the operation of which depends on the flow of electrons for the generation, transmission, reception, and storage of information.答案：电子学属于工程和应用物理学的范畴，一般研究由电子线路构成的设备的设计和应用。
电子信息类专业英语 unit 4 Microelectronics
❖ 微型化是指减少元件和电路的几何尺寸, 从而增加封装 密度、降低功耗、减少信号传播延迟。
❖ The integrated circuit is a group of transistors manufactured from a single piece of material and connected together internally, without extra wiring . Integrated circuits are also called ICs or chips.
电子信息专业英语试卷1
电子信息专业英语期末考试试卷（一）（考试时间120分钟，满分100分）一、词汇测试题（共25道题，每小题1分，总计25分）(一)．Translate the following words and expressions into Chinese (写出下列词组的汉语意思。
)(共25分，每题1分，总计25分)1． resistor 2． capacitor 3． inductor 4． resistance 5． capacitance 6． inductance . 7．Dielectric8． frequency9．electromotive force （emf ）10． Electronics 11． Electricity12． electron 13． Diode14． Transistor 15． Circuit 16． Vacuum 17． semiconductor 18． silicon 19． chip20． microminiaturization 21． Microelectronics 22． integrated circuit 23． Negative 24． Positive 25． Cell(共25题，每题1分，总计25分)1.黑白电视机2.基本原理3.硅晶体管4.电子元件5. 锗晶体管6. 真空二极管7. 信息时代 8. 单片 9.电源 10.负极 11.正极 12.干电池 13.串联 14.并联 15.电压降16.固定电阻 17.电阻值18.电场 19.容抗 20. 对电流的阻力21. 非线性电阻23.一个二端元件24.一个闭合回路 25. 事实上（三）填空题Choose one word from the word list below to fill in the blank in each of the following sentences. Change the form of the word where necessary: （共8道题，每题1分，总计8分）resistors capacitance nonlinear resistance electricity inductor electrical capacitor1. Capacitor’s basic function is to store _____ energy.2. A _____ is a device designed to have capacitance.3. The property of a capacitor to oppose any change in voltage across that capacitor is called ______.4. Resistors used for special applications are ______.5. Ohm is used as a unit of ______.6. Some _____ are made to have a variable resistance.7. The larger is the emf, the more ______ the capacitor stores. 8. Any _____ is made of wire having resistance.（四）单项选择题Choose the one that best completes each of the following statements according to the text: （共12题，每题1分，共12分）1. Electronics is a part of _______.A. electronsB. technologyC. electricityD. science2. The field of electronics includes _____.A. transistorB. electron tubeC. integrated circuitD. All above3. Thomas Edison invented ______ in 1883.A. vacuum tubeB. diodeC. triodeD. lamp4. The first transistors were made from ______.A. siliconB. germaniumC. copperD. gold5. ______ created a new future in electronics.A. Integrated circuitB. SemiconductorC. Electron tubeD. Computer6. Due to the invention of ______, microelectronics was created in 1950s.A. electron tubeB. transistor 7. Power supply, the conductor, the control device and ______ are fourbasic parts of an electric circuit.A. batteryB. wireC. switchD. load8. The energy conversion can take place _______.A. in the circuitB. in a cellC. within the loadD. along the wire9. Electric circuit is a combination of a conductor and of a source of e.m.f.which permits electrons to flow along a ______.A. streamB. wireC. terminalD. pathway10. The electrons move in a fixed way in a _____ direction.A. definiteB. differentC. variousD. appropriate11. The electric current flows from ______ to ______.A. negative , positiveB. positive, negativeC. minus, plusD. A and C12. When the current flows, it is a ______ circuit.A. closedB. openC. combinationD. electric（五）翻译题（共10题，每题2分，总计20分）1. Each lamp filament representing an independent path from the minus main wire to the plus wire.2. Silicon transistors began to replace germanium transistors in the late 1950s, which made possible the next revolutionary step in electronics.3. Electronics began in 1883, when Thomas Edison discovered the vacuum diode as part of his research on materials for a practical electric light. proportional to the current passing through it.5. Such circuits make it possible to combine the different voltage characteristic of a series circuit with the different current characteristic of a parallel circuit within a single network.6. Jack Kilby, an American scientist, made the first single IC in the late 1950s, which laid foundation of microminiaturization and integration.7. Digital computers are essentially machines for recording numbers, operating with numbers and giving the result in numerical forms．8. Integrated circuits are more of a science, than of a technology．9. Bandwidth of transistor amplifiers vary from about 250 MHz in the L band to 1000 MHz in the X band．10. The main device failure mode is secondary breakdown。
电子信息工程专业专业英语考卷
电子信息工程专业《专业英语》课程期末考试试题专业、班级：姓名：学号：共 6 页第 1 页三、根据英文缩写写出中文含义（每题 0.5 分，二十个小题，共 10 分）1). CDMA2). ALU3). DAS4). HLL5). SCR6). I/O7). MIPS8). MMX9). DCS10). HDD11). PLA12). VSWR13). DC14). FDM15). GBW16). TDM17). IP18). DCT19). MRI20). PCM四、将下列句子翻译为中文（每题 2 分，五个小题，共 10 分）1). At present, the state of most semiconductor device technology is such that the device design and process technology must be supplemented by screening and inspection procedures, if ultimate device reliability is to be obtained and controlled．2). The converter is essentially a highly over –sampling 1-bit ADC (the comparator) followed by digital filtering and decimation to realize the processing gain. The effective performance of the converter is greatly enhanced by the addition of circuitry to shape the quantization noise such that, instead of being uniformly spread throughout the 0 to fs/2 band, it is minimized in the band of interest.3). Although the individual integrated circuits might cost as little as 10 cents each, the cost of designing the printed circuit board for such a system and the cost of assembling the board are very significant and this design style is no longer cost-effective.4). Rather than just matching the abilities of the human ear, these systems are designed to exceed the limits of hearing. It's the only way to be sure that the reprod uced music is pristine.5). In the case that the object types in a video sequence belong to known object classes, knowledge-based coding can be employed, which uses a wireframe specially designed to describe the recognized object type. Several approaches have been developed to code human heads using predefined wireframes. Using a predefined wireframe increases coding efficiency because it is adapted to the shape of the object. Sometimes. this technique is also referred to as model based coding.五、将下列句子翻译为相应的英文（每题 3 分，五个小题，共 30 分)1). 在测量应用中，选择合适的探头是获得最佳信号保真度的关键。
(完整版)电子信息专业英语复习资料
电子信息专业英语复习资料一、基本术语（英译汉）1.probe探针2.real time operational system 实时操作系统3.debugger 调试器4.sourse code 源代码5.software radio wireless LAN 软件无线电网络6.base station 基站7.top-down approach 自顶向下分析法8.variable 变量9.data compress 数据压缩10.signal conditioning circuit 信号调理电路11.Chebyshev Type Ⅰfilter 切比雪夫Ⅰ型滤波器12.vertical resolution 垂直分辨率13.device driver 设备驱动piler 编译器15.template 模板16.concurrent process 并发进程17.object recognition 目标识别18.Discrete Time Fourier Transform 离散傅立叶变换bined circuit 组合逻辑电路20.impedance transform 阻抗变换器21.voltage source 电压源22.passive component 无源器件23.quality factor 品质因数24.unit-impulse response 单位脉冲响应25.noise origin 噪声源26.Domino effect 多米诺效应27.output load 输出负载28.cordless phone 无绳电话29.Antenna 天线30.harmonic interference 谐波干涉31.Parallel Resonant 并联谐振32.voltage control oscillator 压控振荡器33.adaptive delta modulation 自适应增量调制34.amplitude modulation 调幅二、缩略语（写出全称）1.LSI：large scale integration2.PMOS：p-type metal-oxide semiconductor3.CT：cycle threshold4.MRI：magnetic resonance imaging5.ROM：read-only memory6.DRAM：dynamic random access memory7.TCXO：temperature compensated X'tal (crystal) OscillatorB：Universal Serial Bus9.DCT：discrete cosine transform10.DC：direct current11.CD：Compact Disc12.ASIC：application-specific integrated circuit13.MPEG：Moving Picture Experts Group14.ASSP：application-specific standard product15.EEPROM：electrically erasable programmable read-only memory16.GBW：gain band width17.PLD：programmable-logic device18.RTL：resistor transistor logic19.IP：intellectual property20.FPGA：field-programmable gate array21.CAD：computer-aided design22.MAC：multiply-accmulate23.GSM：Global System for Mobile communications24.CDMA：code division multiple access25.EDA：electronic-design automation26.HDL：hardware-description language27.OS：operating system28.PCB：printed-circuit board29.CMOS：complementary metal-oxide semiconductor30.AC：alternating current31.SRAM：static random-access memory32.PLL：phase-locked loop三、翻译（英译汉+汉译英）1.Bode presented a log technique that transformed the intensely mathematical process of calculating a feedback system's stability into graphical analysis that was simple and perceptive.伯德采用的是一种对数方法——将分析反馈系统稳定性的数学过程转换为简单又好理解的图形化分析。
东莞理工学院试题电子信息工程专业英语
field
bus network rectifier regulator monitor
田野, 场地, 领域
公共汽车 网、网状组织 修正者 调整者 班长
（电、磁）场
总线 网络 整流器 稳压器 显示器、监视器
0.1 科技英语的特点 features
0.1.2 词汇 Vocabularies or words
0.2.1 翻译的准则 The Criteria of Translation
e.g. In the AND circuit, “1” signals on all inputs give a “1” output ; output is “0” , if all inputs are not “1” . 在“与”电路中, 若所有输入端为“1”信号, 则输 出“1” ; 若所有输入端不是“1”, 则输出“0” 。
0.1 科技英语的特点 features
0.1.2 词汇 Vocabularies or words
转意通词汇借用、移植过来，赋予了专业含 义。出现在专业文献中，一般就是使用其专业含 义。
resistance current charge 阻力, 抵抗, 敌对
Interactive-network → internet
互联网、因特网 收发器
transmitter-receiver → transceiver
0.1 科技英语的特点 features
0.1.1 长句 Long sentences
有两种方法简化长句，以正确把握长句句意 —— the ratio of A to B ：A与B的比率
012词汇vocabulariesorwords?专业词汇specialityvocabularies01科技英语的特点featureselectronic电子的mailemailelectric电的voltagecurrentresistanceelectrical电气的engineerpropertyelectro电electromagneticwaveelectrodynamicelectrode电极anode阳极正极cathode阴极负极positive阳性的正的negative阴性的负的012词汇vocabulariesorwords01科技英语的特点featuresdiode二极管triode三极真空管?专业词汇specialityvocabulariesoscillator振荡器oscilloscope示波器oscillo波动radio无线电收音机radar雷达laser激光ohmslaw欧姆定律amplifier放大器transistor晶体管三极管fieldeffecttransistor场效应晶体管fet?转意词汇transferedwords01科技英语的特点features012词汇vocabulariesorwords从普通词汇借用移植过来赋予了专业含义
电子信息专业英语试卷B
一、依据英文单词写出中文词义（每题 1 分共 20 分）silicon 硅2 power dissipation 功耗3 flip flop 触发器4 base band 基带5 micron 微米6 assembly language 汇编语言7 transient response 瞬态响应8 quality factor 质量因子9 power supply 电源10. quantization level 量化电平11. undersampling 欠采样12. dielectric 介电的13. decibel 分贝14. duty cycle 占空比15. transducer 传感器16. emulation 仿真17. power-up 加电18. buffer 缓冲器19. semi-custom 半定制20. synthesis 综合二、依据中文词义写出英文单词（每题 1 分共 20 分）1. 电流源current source2．晶体管transistor3．周期period4．稳固性stability5．矢量vector6．复位reset7．除法division8．振荡器oscillator9．锁存器latch10．滤波器filter11．电感inductance12．电容capacitance13．存放器register14．正反应positive feedback15．并联parallel16．谐振resonance17. 晶体crystal18．原理图schematic19．整流器rectifier20．增益gainWhat is a filter? A filter is a device that passeselectric signals __at_ certain frequencies or frequency ranges __while_ preventing the passage of others.Filter circuits are used ___in____ a wide variety of applications. In the filed oftelecommunication (在电信领域 ),band-pass filters are used in the audio frequency range (0kHz to 20kHz) for __modem and speech processing__ (调制解调器和语音处理 ).High-frequency band-pass filters(several hundred MHz) are used for____channel selection_ (信道选择 )in telephone central offices. Data acquisition systems usually require _anti-aliasing low-pass filters__（抗混叠低通滤波器 ) as well as low-pass noise filters in their preceding __signal conditioning_ ( 信号调治 )stages. System power supplies often use band-rejection filters to suppress the 60-Hz frequency and high frequency transients. In addition, there are filters that do not filter_ ( 滤除 )any frequencies of a complex input signal, but just add a ___linear phase shift__ (线性相移 )to each frequency component，thus contributing a constant __time delay__（时延） .These are called ___all-pass filter__ 全(通滤波器 ).At high frequencies (>1 MHz), all of these filters usually consist __of_ passive components __such as__ inductors (L), resistors (R), and capacitors(C). They are then __called______ LRC filters. In the low frequency range (1 Hz to 1 MHz), however, the inductor value becomes very large and the inductor itself gets quite bulky,___making__ economical production difficult. In these _cases_____, _active filters_(有源滤波器) becomes important. Active filters are circuits that use _operational amplifier__ ( 运算放大器) as the active device ___in__ combination with some resistors and capacitors to provide an LRC-like filter performance at low frequency.四 . 翻译（每题 5 分共 40 分）1.As in the first- order case, the second-order low-pass transfer function tends to zero as frequency tends to infinity.当频次趋近于无量时，二阶低通滤波器的传输函数趋近于零（和一阶低通滤波器的传输函数同样）。
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Translate the following passages into Chinese or English 。
Unit 2
1、It is extremely hard to definite dynamic range （DR ）for an op amp ，so let is start with a digital-to-analog converter （DAC ） where DR is define as the ratio of the Maximum output voltage to the smallest output voltage the DAC can produce
译文：由于很难定义运算放大器的“动态范围”（DR ），因此先给“数模转换器”（DAC ）的动态范围下定义。
DAC 的动态范围就是其最大输出电压和最小输出电压之比。
2、The same definition of DR can be used for an op amp ，and the maximum output voltage swing equals OUTMAX V 。
This output voltage swing is defined as the maximum output voltage the op amp can achieve （OH V ） minus the minimum output voltage the op amp can achieve （OL V ）。
OH V and OL V are easily obtainable from an op amp IC data sheet 。
译文：这个“动态范围”的定义也可用于运算放大器，其最大输出电压摆幅为OUTMAX V 。
输出电压摆幅定义为运算放大器能达到的最大输出电压（OH V ）减去最小输出电压（OL V ）。
从运放集成电路数据手册中，可以很容易获得OH V 和OL V 。
3、电压和水有相似之处——当其供应量很少时，人们才会认识到其价值。
低电压系统（此处是指低于5V 的单电源供电）让我们认识到电压的价值。
译文：In one respect ，voltage is like water ：you don't appreciate its value until your supply runs low ；Low —voltage systems ，defined here as a single power supply less than 5V ，teach us to appreciate voltage 。
4、在电子技术个领域中，欧姆定律都是基本定律。
欧姆定律可表述为R I V ∙=。
欧姆定律可应用于单个器件、一组器件或一个完整电路。
当已知流过电路中各部分的电流时，其电压降可由电阻和电流的乘积获得。
译文：Ohm’s law is stated as R I V ∙= ,and it is fundamental to all electronics 。
Ohm’s law can be applied to a single component,to any group
of component,or to a complete circuit。
When the current flowing through any portion of a circuit is know ,the voltage dropped across that portion of the circuit is obtained by multiplying the current times the resistance。
5、电路就是无源器件和有源器件的组合。
器件按照特定方式排列，以完成期望的功能。
器件的排列就形成了一个电路，或叫做电路结构。
模拟电路设计就是开发各种电路结构。
译文:Circuits are a mix of passive and active components.The components are arranged in a manner that enables them to perform some desired function.The resulting arrangement of components is called a circuit or sometimes a circuit configuration.The art portion of analog design is developing the circuit configuration.。