电气工程及其自动化自动化专业英语重点考试题

1、四川理工的学弟学妹们，特别是自电学院的兄弟伙们，专业英语难过啊，是否需要这个呢？我的淘宝店铺：信诚悦购 HYPERLINK http:/dreammark http:/dreammark .taobao .com包你80分电气自动化、自动化专业英语课堂 笔记一.短语互译（10个，每个2分， 共20分）1、 DC/AC :direct/alternating curre nt（直流/交流）2、a good rule of thumb.（根据经验）3、step-up/step-down transformer（升 压/降压变压器）autotra nsformer（自耦变压器）4、gate-turn

2、-off thyristor e airist?（门极可关断晶闸管）5、silicon-controlled rectifier（可控硅整流器）6、forward voltage drop（正向压降）7、reverse breakdown voltage（反向 击穿电压）8、reverse leakage curren（反向漏电流）9、peak reverse voltage（反向峰值电压）10、forced commutation（强制换流）11、three-phase ac squirrel cage induction motor （三相交流鼠笼式感应电机）12、AM/FM :ampli

3、tude/frequency modulatio n（调幅 / 调频）13、active/passive filter （有源 /无源滤波器）14、bistable circuit（双稳电路）15、flip-flop （触发器）16、emf： electromotive i,iektr ?um?utiv force （电动势）17、magnetic flux （磁通）18、magnetizing current （磁化电流 / 励磁电流）19、general-purpose relay（通用继电 器）20、solid-state relay（固态继电器）21、time constant （时间

4、常数）22、ADC : analog-to-digital conversion （模数转换器）二、汉译英（5-6个，共30分，2 个课外）1、通过互联网进行商业交易，其便 利性和速度是推动电子商品快速发 展的主要因素。The ease and speed with which bus in ess tran sacti ons can be carried out over the web has bee n a key force in rapid growth of electrical commerce.2、用户互动，包括在线客户服务和 在线调查，提供了新的交流渠道， 这在以前是不可能

5、也是非常低效 的。Customers in teractio ns in cludi ng online customer services and online survey,provides a new channel of com muni catio ns,which were not previously available and very in efficie nt.3、并绕式直流电动机的调速性能 很好。当负载增加时，由于电枢上 电压降的增加，其转速会稍微降低。The DC shunt-wound motor has a good speed regulati on. The s

6、peed will decrease slightly when the load in crease due to the in crease in the voltage drop across the armature.4、用户用于在建筑内传输电能的 配电系统类型取决于各自的安装要 求，居民住宅通常使用最简单的类 型。The type of distribution system that the con sumer uses to tran smit power with in build ing depe nds on the requireme nts of particular

7、in stallati on, reside ntial buildi ngs gen erally use the simplest one.5、控制系统中控制器参数固定时， 其性能将在一定程度上总是取决于 被控设备或系统的参数。The performa nee of a con trol system hav ing a con troller with fixed parameters will always depend to some extent on parameters of the equipme nt or system being con trolled.6、新设备替代老

8、设备将会使产量 大大增加。The substituti on of new equipme nt to the old result in in crease in producti on.7、无论何时，若某元件上电流参考 方向与电压参考方向相同时，在任 何涉及电压和电流的公式中取正 号。When ever, the reference directi on for the circuit in an element is the directi on of the reference voltage drop across the eleme nt use a positi on sig n

9、 in any impression relates to the voltage to the curre nt.8运算放大器最初是作为模拟计 算机的一个基本构成算元出现的， 由于它被用数学运算，所以被称为 运算放大器。The operati onal amplifier circuit existed initially came into existence firstly as a basic building block of analog computers. It was referred as operational because it was used to complem

10、e nt mathematical operati ons.9、电感是在一个磁性或非磁性材 料的磁芯上绕制一卷线圈构成。An in ductor is composed of a coil of wires woun ded around a core whose material maybemagn eticornonmagn etic.10、变压器由两个线圈恰当安放而 成的，一个线圈所产生的变化磁通 将连接至另一个线圈。A transformer is constructed of two coils placed so that charging flux developed by on

11、e will li nk the other.三、英译汉（5-6个，共30分，1 个课外）1、Electrical personnel use many differe nt types of measuri ng instruments.Some jobs require very accurate measurements while other jobs n eed only rough estimates. Some in strume nts are used solely to determine whether or not a circuit is complete.电子技术人

12、员使用许多不同类型的 测量仪器。一些工作需要精确的测 量而另一些工作只需粗略估计。有 些仪器仅仅被用来确定确定电路是 否完整。2、The importance of never allowing the actual value to exceed the maximum value indicated on the meter can not be overemphasized. 不允许被测的实际数值超过仪表最 大允许值的要求再强调也不过分。3、Since the heat sinks for both stud-m oun ted and hockey puck devices can a

13、lso carry the electric current， they must be electrically isolated from their mecha ni cal moun ti ngs.由于栓接式和冰球式器件的散热器 都能传递电流，它们必须与机械托电气绝缘。4、If the entire system is good, every acoustic variation of the air will be recorded on the disk and,when the record is played back through a similar system and

14、the sig nal reradiated as sound energy by a loudspeaker,the result ing sound should faithfully reproduce the origi nal music.如果整个系统正常，每一次声波振 动都会记录在圆盘上，并且当该记 录通过类似的系统重放，信号以声 能的形式从扬声器辐射出来，所产 生的声音能如实地重现原始音乐。5、In formatio n can be com muni cate in digital from if the message is capable of being defined

15、by a series of yes/no stateme nts.Thereca n be only two states of each variable used in conveying the in formatio n.如果信息能被一系列的YES/NO所 定义，信息就能以数字形式确定。 每个变量只可能有两种状态在传送 信息方面使用。6、Most early discoveries related toelectrical machinery operation dealt withdirect-curre ntsystems.Alternati ng-curre nt(AC)pow

16、e r gen eratio n and distributi on became widespread a short time later.大多数早期的发明都与处理直流电 系统的电机操作有关。交流电(AC) 发电机和传输后来才变得广泛。7、Some starters control a motor by being connected directly across the power in put lin es.Other starters reduce the level of in put voltage that is applied to the motor when it is

17、 started so as to reduce the value of the starting current.一些起动器通过直接连接电源线的 方式控制电机，另一些起动器降低 起动时施加到电机上的电压水平， 从而降低了起动电流。8、For example, piezoelectric accelerometer with built-i n microelectronic integrated circuitry are marketed as piezoelectric velocity tran sducers.例如，带有内嵌的微电子积分电路 的压电式加速度计可以作为压电式 速度传感器上市销售。9、We might question the need forseparate transducers to measure the four kin ematic variables-displaceme nt, velocity,acceleratio n,andjerk-because any one variable is related to any other through simple integration or differentiation.我们或许会质疑是否需要单独的传 感器去测量这四个运动变量一位 移、速度、加速