摆                          Pendulum
    泵                           Pumps  
    变速泵                     variable-speed  Pumps 
    定排量泵                   positive-displacement  Pumps
    计量泵                     metering  Pumps
    离心泵                     centrifigal  Pumps
  闭合回路                     Closedloop  
    反馈～                     feed back ～ 
    前馈～                     feedforward～  
  比例带                       Proportionalband  
  比例控制(调节)                Proportionalcontrol  
  液位～                       ～ of  liquid 1evel  
  比例—时间控制               Proportional-time control  
  比值单元                     Ratio station  
  比值控制                     Ratio control  
  燃料—空气～                 ～of fuel and air 
  变量配对                     Pairing variables  
    精馏过程的～               ～ in distillation  
  变送器误差                   Transmitter error  
  变送器增益                   Transmitter gain  
  标准差                       Standarddeviation  
  波形                         Waves
  采样正弦波        &n