10级专业英语试卷.doc

洛阳理工学院 2012/2013 学年 第一学期专业英语 期末考试试题卷（A）适用班级：B100509/10/11/12 考试日期时间：2012.11.29一、 用英语写出缩写形式的全称(每小题1分，共10分) 1. ADC 2. CATV 3. CAD 4. DSP 5. DC 6. FM 7. HDTV 8. IEE 9. IEEE 10. LED 二、 Please translate the following phrases into English. (每小题2分，共30分)1. 模拟电路 2. 集成电路 3. 共射极电路 4. 负载电阻 5. 步进制 6. 纵横制 7. 电子交换机8. 长途网 9. 灰度图像 10. 直方图均衡11. 图像对比度 12. 结果矩阵 13. 真空三极管 14. 纠错编码15. 视线传播 三、 Please translate the following phrases into Chinese. (每小题2分，共30分)1. very-high-frequency2. ultra-high-frequency3. quadrature amplitude modulation4. stored-program control5. circuit switch6. packet switch7. CATT (China Academy of Telecommunications Technology)8. edge filter9. magnitude spectrum10. object recognition11. phase spectrum 12. binary-coded number 13. Hi-Fi14. electromagnetic induction 15. single-sideband四、 Translate the following sentences into Chinese. (每小题2分，共30分)1. See the answers as given at the end of this book2. For all its great size, the machine moves noiselessly3. It is desired that the switch (should) produce only one clock pulse each time it is closed4. In a transistor the output current depends upon the input current, hence it is a current operated device.5. As rubber prevents electricity from passing through it, it is used as insulating material6. Depending on the relationship between the signal frequencies and the sampling rate, spectral inversion may cause the shape of the spectrum in the baseband to be inverted from the true spectrum of the signal.7. Low pass filters blur images, high pass filters emphasize sharp changes in gray scale level, and edge filters locate edges in an image 8. The avalanche photodiode (APD) detector is followed by a front-end amplifier and equalizer or filter to provide gain as well as linear signal processing and noise bandwidth reduction.9. The main benefits of TD-SCDMA are that it can be implemented less expensively than comparable 3G systems since it is much more spectrum efficient and is compatible with GSM network elements, allowing 3G services without installation of completely new infrastructure.10. Furthermore, this information would be available to the patients private physician and to this (or another) hospital in case of a subsequent readmission or transfer to another facility.11. Several different types of computer peripherals may appear as network terminals, and so also can computers functioning in several different ways.12. Intensity is a measure of power per unit area, and even a laser that emits only a few milli-watts can produce a lot of intensity in a beam thats only a millimeter in diameter.13. 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 controlled14. Because of the very high open-loop voltage gain of the op-amp, the output is driven into positive saturation (close to +V) when the sample voltage goes slightly above the reference voltage, and driven into negative saturation (close to-V) when the sample voltage goes slightly below the reference voltage. 15. Intergraded circuits are also classified according to their functions. Digital or logical IC are used as switches, they are either on or off. In computers the on and off states correspond to 0 or 1.Other IC is called linear or analog IC.洛阳理工学院 2012/2013 学年 第一学期专业英语 期末考试试题卷（A）答案及评分标准适用班级：B100509/10/11/12 考试日期时间：2012.11.29一 用英语写出缩写形式的全称(每小题1分，共10分) 1. A/D, ADC Analog-to-Digital Converter2. CATV Cable Television3. CAD Computer-Aided Design4. DSP Digital Signal Processing, Digital Signal Processor5. DC, dc Direct Current6. FM Frequency Modulation7. HDTV High Definition Television 8. IEE Institute of Electrical Engineers9. IEEE Institute of Electrical and Electronic Engineers10. LED Light Emitting Diode二 Please translate the following phrases into English. (每小题2分，共30分)1. 模拟电路 analog circcuit2. 集成电路 integrated circuit3. 共射极电路 common emitter circuit4. 负载电阻 load resistor 5. 步进制 step-by-step6. 纵横制 crossbar7. 电子交换机electronic switch8. 长途网 long-distance network9. 灰度图像 gray scale image10. 直方图均衡histogram equalization11. 图像对比度 image contrast12. 结果矩阵 resultant matrix13. 真空三极管 triode vacuum tube14. 纠错编码error-correction code15. 视线传播 los propagation三 Please translate the following phrases into Chinese. (每小题2分，共30分)1. very-high-frequency甚高频2. ultra-high-frequency超高频3. quadrature amplitude modulation正交幅度调制4. stored-program control存储程序控制5. circuit switch电路交换6. packet switch分组交换7. CATT (China Academy of Telecommunications Technology)中国电信技术学会8. edge filter边缘滤波器9. magnitude spectrum幅度谱10. object recognition目标识别11. phase spectrum 相位谱12. binary-coded number 二进制编码数 13. Hi-Fi高保真度14. electromagnetic induction 电磁感应15. single-sideband 单边带四 Translate the following sentences into Chinese. (每小题2分，共30分)1. See the answers as given at the end of this book请参阅本书末尾给出的答案。2. For all its great size, the machine moves noiselessly尽管体积大, 但该机器的运转噪声很小。3. It is desired that the switch (should) produce only one clock pulse each time it is closed人们希望, 开关每闭合一次只产生一个脉冲。4. In a transistor the output current depends upon the input current, hence it is a current operated device.晶体管的输出电流取决于输入电流, 因此它是电流控制器件。5. As rubber prevents electricity from passing through it, it is used as insulating material因为橡胶不导电, 所以用作绝缘材料。6. Depending on the relationship between the signal frequencies and the sampling rate, spectral inversion may cause the shape of the spectrum in the baseband to be inverted from the true spectrum of the signal.根据信号频率和采样频率之间的关系的不同, 可能出现“频谱反转”现象基带频谱的形状和信号真实频谱的形状正好相反。7. Low pass filters blur images, high pass filters emphasize sharp changes in gray scale level, and edge filters locate edges in an image 低通滤波器使图像变得模糊, 而高通滤波器突出了图像的灰度锐变, 边缘滤波器则对图像边缘进行定位。8. The avalanche photodiode (APD) detector is followed by a front-end amplifier and equalizer or filter to provide gain as well as linear signal processing and noise bandwidth reduction.前置放大器与均衡器或滤波器跟在雪崩二极管检测器的后面以获得增益、线性信号处理及噪声带宽的抑制。9. The main benefits of TD-SCDMA are that it can be implemented less expensively than comparable 3G systems since it is much more spectrum efficient and is compatible with GSM network elements, allowing 3G services without installation of completely new infrastructure.TD-SCDMA的主要优势在于它的运营费用比其他3G系统低, 因为它的频谱利用率较高而且与GSM网络组件兼容, 使得3G业务在GSM系统中能够实现而不需要安装新的基础设施。10. Furthermore, this information would be available to the patients private physician and to this (or another) hospital in case of a subsequent readmission or transfer to another facility.而且，万一以后重进医院或转入其他地方，病人的私人大夫和这家（或其他）医院都可以看到这些信息资料。11. Several different types of computer peripherals may appear as network terminals, and so also can computers functioning in several different ways.几种不同的计算机外围设备可能作为网络终端出现，几种不同方式运行的计算机也可能作为网络终端出现。12. Intensity is a measure of power per unit area, and even a laser that emits only a few milli-watts can produce a lot of intensity in a beam thats only a millimeter in diameter.强度是每单位面积上能量的度量，即使一个仅产生几毫瓦能量的激光器也能产生一个直径只有1毫米的高强度光束。13. 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 control