expansion card 扩展卡（汉译英）
CPU=central processing unit 中央处理器）（考三个英文单词）
serially 串行serial/parallel processing 串/并行处理
compatible 兼容的（汉译英）socket 插座（汉译英）
topology拓扑结构（汉译英）sequential access顺序存取（汉译英）
asynchronous 不同时、异步的heuristics 探试法；启发式方法
synchronous同时的
cylinder圆桶、柱面signal flow graph 信号流图（汉译英）
conjugate 共轭的（汉译英）programmable logic controller=PLC
open-loop开环automation自动化
eddy涡流pulse脉通；脉动
microsecond微妙gain增益
torque转矩（汉译英）guard period保护时段
closed loop voltage gain 闭环电压增益ionosphere电离层
pressed加压的kernel内核程序
optimal control最优控制（汉译英）relay继电器
difference frequency distortion 差频失真replicate复制
hacker黑客（英译汉）
1、In Fig1. The battery is absorbing 24w, as would the case when it is being charged.
在图1中，电池吸收24w，就认为它是在充电情况下的。
2、It should be noted that an ideal voltage source (dependent or independent )will produce any current required ,to ensure that the terminal voltage is as stated ,where as an ideal current source will produce the necessary voltage ensure the stated current flow.
应该指出的是，一个理想电压源（独立的或受控的）将产生任何电流必须确保终端机电压是规定的。
反之，一个理想电流源将产生所需的电压确保规定的电流流动。
3、There are phenomena that occur in computer-controlled systems that have no correspondence in analog system.
有一些现象发生在计算机控制系统中，而不发生在相应的模拟系统中。
4、A PLC（programmable logic controller）is a device that was invented to replace the necessary sequential relay circuits for machine control.（英译汉）
可编程序控制器的发明装置是为了代替机械控制中顺序继电器电路的设备。
5、In practice, the complexity of systems and our ignorance of all the factors necessitate the introduction of assumptions concerning the system operation.
在实践中，系统的复杂性和对我们所忽视的所有因素需要引入关于操作的系统假设。
6、Although most physical systems are controllable and observable, corresponding mathematical models may not possess the property of controllability and observability.
尽管大多数的物理模型是可控和可观测的，但在相应的数学模型中可能不具有可控性和可观测的属性。
7、A simple steady-state energy balance provides the steady-state heat flow needed to obtain a new steady-state temperature. 一个简单的稳态能量平衡提供了一个新的稳态温度所需要的稳态热流。
8、The protective relay is a sensing device, which senses the fault ,determines its location and then send command to the proper circuit breaker by closing its trip coil.（汉译英，分值最大）
保护继电器是一种用来感知错误的传感器装置，报出位置并传送指令到断路器来关断跳闸。
9、For example ,let’s assume that when a switch turns on we want to turn a solenoid on for 5 seconds and then turn it off regardless of how long the switch is on for.
10、The circuit parameter of capacitance relates the displacement current to the voltage , where the displacement currentis equal to the conduction current at the terminals the capacitor.
在电路中电容的参数与位移电流和电压有关，在这里，位移电流等同于在电容末端的传导电流。
11、Note that, because the open-loop complex-conjugate poles and cpmplex-conjugate zeros are always located symmetrically about the real axis , the root loci are always symmetrical with respect to this axis.
注意，因为开环复共轭极点和复共轭零点总是位于实轴的对称，所以跟轨迹总是关于这根轴对称。