double tapph.
doubleadj.双重的;成双的;两倍的v.翻一番;使 ... 加倍n.两倍;双份
double cotton-covered wire双纱包线
double-optimization design双重优化设计
double conical rotary vessel双锥转鼓
double threshold alternating双阈值交替
double axle ditching machine双轴开沟机
double-hybrid rice strains两系法杂交水稻
double outlet left ventricle左心室双出口
double-base junction diode单结晶体管
double-coated X-ray film双涂层X射线照相片