电子类常用中英文翻译对照表

              PDM(pulse duration modulation) 脉冲宽度调制
              PF(power factor) 功率因数
              PFM(pulse frequency modulation) 脉冲频率调制
              PG(pulse generator) 脉冲发生器
              PGM(programmable) 编程信号
              PI(proportional-integral(controller)) 比例积分(控制器)  
              PID(proportional-integral-differential(controller))比例  
              积分微分(控制器)
              PIN(positive intrinsic-negative) 光电二极管
              PIO(parallel input output) 并行输入输出
              PLD(phase-locked detector) 同相检波 
              PLD(phase-locked discriminator) 锁相解调器 
              PLL(phase-locked loop) 锁相环路 
              PMOS(P-channel metal oxide semiconductor FET) P沟道 
              MOSFET
              P-P(peak-to-peak) 峰--峰
              PPM(pulse phase modulation) 脉冲相位洲制
              PRD(piezoelectric radiation detector) 热电辐射控测器  
              PROM(programmable read only memory) 可编只读程存储器 
              PRT(platinum resistance thermometer) 铂电阻温度计
              PRT(pulse recurrent time) 脉冲周期时间
              PUT(programmable unijunction transistor) 可编程单结晶体
              管
              PWM(pulse width modulation) 脉宽调制 
              R(resistance，resistor) 电阻，电阻器 
              RAM(random access memory) 随机存储器