double dyevt.染两次
doubleadj.双重的;成双的;两倍的v.翻一番;使 ... 加倍n.两倍;双份
double crank mechanism双曲柄机构
double-layered grate双炉排
double-ended clipper两端限幅器; 两端削波器
double-H groove weld双U
double electrode layer双电层
double pressure boiler双压式锅炉
double-fluid sealing双液体密封
double open end wrench双头扳手
Double- low rapeseed双低油菜
Double-deck spire CT双层螺旋CT