电气工程及其自动化自动化专业英语重点考试题

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电气自动化、自动化专业英语课堂笔

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-off thyristor [ e ai'rist?(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 :amplitude/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 ?u'm?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 speed 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 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 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 compleme 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 maybe magn etic or nonmagn 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 one 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-

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