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 electrical layers双电层结构double-fined treatment双细化处理double tail-fin thrust双尾推进double voltage rectifier双倍压整流器double-hole microshear双孔微剪切double-proximity focus双近贴double reverse flotation双反浮选double star-quad cable双星形四心电缆double-exposure device两次曝光装置(重拍机构)double-ended magnetron双端出线磁控管