double PID双PIDdoubleadj.双重的；成双的；两倍的v.翻一番；使 ... 加倍n.两倍；双份double-prime sequences双素数序列double-reversal system双互换制度double-lever mechanism双杆机构double line ground fault双线接地故障double - sides lapping双面研磨double-inputs receiver双输入接收机double-shell structure双壳结构double hinged swivel arm复式转臂double stars positioning双星定位double-row bamboo pile双排毛竹桩