double PID双PID
doubleadj.双重的;成双的;两倍的v.翻一番;使 ... 加倍n.两倍;双份
Double valve replaeement双瓣替换术
double favorable balance双顺差
double -card factoring双证融通
double button microphone双钮传声器
double sliding back gear双滑动背齿轮
double-reduction drive两级减速传动
double pedicle skin flap双蒂皮瓣
double punishment system双罚制
double-acting cylinder双作用汽缸
double-quality teacher“双师型”教师