一、resistance 阻力，电阻insulator 绝缘体conductor 导体voltage 连续，串联capability 能力take advantage of 利用capacitor 电容器capacitance 容量be formed by 有。
组成inductor 电感器oscillator 振荡器rectifier 整流器amolifier 放大器二、atom 原子nucleus 核子proton 质子negative charge 负电荷positive charge 正电荷electric field 电场free electron 自由电子alternator 交流发电机DC (Direct Current) 直流电三、circuit 电路load 负荷battery 电池switch 开关voltmeter 电压表ammeter 电流表Ohm’s Law 欧姆定律mathematician 数学家voltage drop 电降压四、reverse bias 反偏压forward bias 正偏压PN junction PN结interaction 交感N region N区P region P区五、number system 数学系统numerical 数字值decimal 十进制，小数binary system 二进制系统BCD 二进制编码的十进制hexadecimal 十六进制六AC (Alternating Current) 交流电AC motor 交流电动机electrical energy 机械能mechanical energy 机械设备mechanical equipment 抽水机in simple term 简言之net force 净力friction 摩擦torque 扭矩law of inertia 惯性定律acceleration 加速度deceleration 减速inertia 惯性external force 外力moment of inertia 惯性矩horsepower 马力七、closed-loop 闭环feedback 反馈thermostat 自动调温器deviation 偏离proportional system 比例系统self-regulation 自调整dead time 死区八、PLC (Programmable LogicController) 可编程序逻辑控制器configuration 结构module 模块digital signal 数字信号analog signal 模拟信号relay 继电器microprocessor 微处理器PPI (Point-to-PointInterface)点对点接口PG 编程器九、CNC(ComputerizedNumerical Control) 计算机数值控制walk of life 行业manufacturing 制造业drill press 钻床chuck 抛弃spindle 轴workpiece 工件intervention 干涉by commonality 比较commonality 普通accessory 附件十、incompatible 矛盾的suppression 抑制phenomenon 现象visualize 形象transient 短暂的Ethernet 以太网photosensitive 感光性的optical 光学的补充句子1、From this information we can deduce that for a voltage applied to a piece of nichrome wire , only around 10.55/660 = 0.016 of the amount of current will flow as opposed to the current flowing in the same size copper wire .2、Electrons in the outer band of an atom are easily displaced by the application of some external force .3、Ohm formulated a law which states that current varies proportionally with voltage and inversely with resistance .4、In fact , it is almost glass ,which is silicon dioxide .A crystal of pure silicon is said to be an intrinsic crystal.5、PLC is a computer . It stores information in the form of On or Off conditions(1 or 0), referred to as binary digits (bits).6、Decimal 28 divided by 16 is 1 with a remainder of 12.7、The increase in speed is called acceleration .8、Technical systems process several kinds of controlled variables such as current , voltage ,temperature , pressure, flow ,speed of rotation , angle of rotation ,chemical concentration and many more .9、PLCs consist of input modules or points , a Central Processing Unit (CPU) , and output modules or points .10、One of the first specifications that implies a CNC machine’s complexity is how many axes it has.11、Unfortunately ,in most serial communications systems , surge suppression is not the best choice .句子翻译1、That is why wires are made of metal. They allow current to flow from one point to another point without any resistance . Wires are usually covered with rubber or plastic . (6)这就是电线为什么用金属制成。
它们允许电流流过而没有任何阻抗。
电线通常外面包裹着橡胶或塑料。
2、High voltage power lines are covered with thick layers of plastic to make them safe , but they become very dangerous when the line breaks and the wire is exposed and no longer separated from other things by insulation.(7)为了安全，高压电线外面要包一层很厚的塑料，当电线折断并且裸露，不再被绝缘体隔离时是非常危险的。
3、Making the resistance higher will let less current flow so the volume goes down .(8)当电阻调大时，流过的电流迅速减小。
4、Variable resistance are also common components . They have a dial or a knob that allows you to change the resistance .(9)可变的电阻器也是普通的元件。
它们有一个刻度盘或一个旋钮可供调节阻值。
1、Negative charges repel negative charges , positive charge repel positive charges , and positive and negative charges attract each other . In short , like charges repel an unlike charges attract .(3)负电荷排斥负电荷，正电荷排斥正电荷，正负电荷相互吸引。
简言之，同种电荷相互吸引，异种电荷相互排斥。
2、Scientist also discovered that positive charges are integer multiples of a very small charge , the same charges are an electron—but positive . The proton has this charge .(5)科学家还发现正电荷量也可看作是一个整数与一个很小的电荷量的乘积，电荷量的大小与电子相同——但是正的。
质子也具有这样的电荷。
3、Electrons of an atom have orbits at different distances from the nucleus . For some atoms the electrons in the farthest orbits have only weak forces binding them to the atoms .(8)原子内的电子在离核不同的位置上饶核运动，在某些原子中对离核最远的电子只有微弱的力将其束缚在原子内。
1、Diodes are components that allow current to flow in only one direction.They have a positive side and a negative side.(3)二极管是一种只允许电流以一个方向流过的元件。
它有一个正极和一个负极。
2、The time required for a capacitor to reach its maximum charge is proportional to the capacitance value and the resistance value .(7)电容的充电时间同它的电容值和阻抗值成比例。