Variable lags变时滞variableadj.可变的；易变的n.变量；易变的东西variable attenuation equalizer可变衰减均衡器variable cross-sectional bar超声波换能器variable geometry turboeharger可变截面涡轮增压器Variable Velocity Rifle System变速步枪系统variable stroke injection pump变冲程喷油泵variable delay pulse generator可变延迟脉冲发生器variable reluctance transducer可变磁阻换能器variable depression carburetor见fixed choke carburetorvariable-speed control lever无级变速操纵杆variable stiffness coefficient变刚度