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 patient’s 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 that’s 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 controlled．目前, 大多数半导体器件的技术尚未十分完善, 以至若要获得并控制器件最终的可靠性, 就必须辅以筛选和检验, 以弥补设计和工艺技术之不足
14. 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.?由于运放的开环电压增益很高, 当取样电压略高于参考电压时, 输出趋向于正向饱和状态(接近+V)。 当取样电压低于参考电压时, 输出趋向于负向饱和状态(接近-V)。
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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.?也可根据其功能不同对集成电路进行分类。 数字IC(也称为逻辑IC)通常用作开关, 表示接通或关断。 在计算机中, 接通和关断状态分别对应“0”或“1”。 另一种IC被称为线性或模拟IC。 ?
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