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1、考试日期：05 年 12 月 31 日 1. 为此，必须对电路(circuit)的基本内容有一个很好的了解。For this purpose, it is necessary to have a good understanding of the fundamentals of the circuit.2. 这个系数(coefficient)有待确定。This coefficient remains to be determined.3. 现有的教科书均没有提这一点。None of the textbook available mentions this point.4. 由于反馈(feedb
2、ack)在电子线路(electronic circuit)中起着重要作用，所以对它的研究极为重要。Since feedback plays an important role in the electronic circuit, its study is very important.5. 有迹象表明，计算机的价格将进一步下跌。There is an indication that the price of computers will fall further.6. 这个方法的确管用，不过到底该在什么情况下使用它尚不清楚。This method does work, but it is no
3、t clear in what condition it is that it should be used.7. 十年前该厂的产量比现在高五倍。The output of this factory 10 years ago is 6 times what it is now.8. 激光(laser)是二十世纪六十年代引入的一项新技术，它能穿透(pierce)特别硬的物质。A new technology introduced in the 1960s, laser can pierce very hard substances.9. 为使晶体管(transistor)正常工作，必须给其电极(
4、electrode)加(apply)上合适的电压(voltage)。For the transistor to work normally, it is necessary to apply a proper voltage across the electrode.10. 代表磁场(magnetic field)的磁力线(magnetic line of force)是一些围绕该导线的同心圆(concentric circle)。The magnetic lines of force representing the magnetic field are some concentric ci
5、rcles surrounding the wire.11. 我们所谓的机器人(robot)实际上是能为人类做工的一种工具。What is called a robot is a tool which can do work for the human being.12. 这类天线(antenna)和那类天线相比的优点是结构简单，效率高。This type of antenna has the advantages over that one of simple structure and high efficiency.13. 半导体(semiconductor)对光和热都很敏感(sensi
6、tive)，这两者都对导电率(conductivity)影响很大。Semiconductors are sensitive to light and hear, both of which have a great impact on conductivity.14. 只有通过对系统性能进行研究我们才能了解其优缺点。15. Only through a study of the systems performance is it possible to know its advantages and disadvantages.16. 本书既讲了实际的设计方法，同时也讲述了理论问题，而重点放在
7、一般概念上。This book discusses both practical design method and theoretical problems with emphasis on the basic concept.考试日期：06 年 9 月 23 日 考试时间： 100 分钟1. 学术界和商界的人们都越来越意识到有些社会已经发展成为信息社会。There is an increasing recognition within the academic and business circle that some nations have evolved into informati
8、on societies.2. 并非所有的要素一定同时起作用(act)，它们也并不需要来自外界的相似信息。All elements do not necessarily function simultaneously, nor do they require similar information from the environment.3. 当时最引人注目的成就之一是人们认识到了光是由电磁(electromagnetic)波构成的。Among the most noteworthy achievements at that time was the realization that lig
9、ht consists of electromagnetic waves.4. 阳光到达地球需要大约八分钟的时间。It takes about eight minutes for sunlight to reach the earth.5. 这个信号太大了，以致于该晶体管(transistor)无法处理。This signal is too large for the transistor to handle.6. 只需给机器加点油，它就会象新的一样。A drop of oil and the machine will be as good as new.7. 我们得确定为移动这张桌子需要一个
10、多大的力。We have to determine how large a force is required to move this table.8. 为了解这道题，我们必须将各种因素考虑进去，这一步骤（procedure）是很复杂的（complicated）。To solve this problem, we must take everything into account, a complicated procedure.9. 虽然原子很小，它们是由更小的单元构成的。Small as they are, atoms are made up of still smaller units
11、.10. 完全有可能取得理想的结果。There is every possibility that satisfactory results will be obtained.11. 这里我们使用相距两米的两个金属球。Here we use two metal balls two meters apart.12. 预计到这台设备运抵（arrive at）该研究所时，那里的技术人员对其工作原理（principle of operation）已学过了。It is expected that, by the time the device arrives at that research insti
12、tute, the technical personnel there will have studied its principle of operation.13. 这些实验得出了这样的结果：若外力（applied force）不变，加速度（acceleration）与质量（mass）成反比（be inversely proportional to）。These experiments lead to the result that with/for a constant force, the acceleration is inversely proportional to the ma
13、ss.14. 把哪一点选作为原点（origin）是没有区别的。It makes no difference which point is chosen as the origin.15. 你使用的结构应尽可能的简单。You should use as simple a structure as possible.考试日期：08 年 月 日 考试时间： 100 分钟1. 这个信号太大了，以至于该晶体管(transistor)无法处理。This is too large a signal for the transistor to handle.2. 常用的方法均不能解这样（so）一个复杂的方程(
14、equation)。Used properly, this book is of great help to readers.3. 他们不清楚到底如何使用这个公式(formula)。They are not clear how it is that the formula can be used.4. 电流被定义为电荷的流动为大家所熟悉。The definition of an electric current as a flow of charge(s) is familiar to us all.5. 物体越热，它所释放(radiate)的能量就越多，这一事实在工程学中具有重要作用。Thi
15、s book discusses both practical design method and theoretical problems with emphasis on the basic concept.6. 这样做了以后，电子拥有更多能量，从而增加光区（light spot）亮度（brightness）。This done, electrons possess more energy, thus/thereby increasing the brightness of the light spot.7. 所谓力的三要素在我们学习力学(mechanics)中起很重要作用。What are called the three elements of a force play an important role in our study of mechanics.8. 与现有设备相比，这个设备具有体积小，质量轻，结构简单的优点。This device has the advantages over those available of small size, light weight and simple structure.9. 我们把磁带(magnetic tapes)和光盘做了一比较。A
