doublenessn.二倍诡计
doubleadj.双重的;成双的;两倍的v.翻一番;使 ... 加倍n.两倍;双份
double cylinder-type thresher双滚筒式脱粒机
double metallic standard system复金属本位制
double clad single-mode fiber双包层单模光纤
double spring-ejecting device双弹顶装置
double superheterodyne receiver双变频超外差接收机
double-beam spectrophotometer双光束分光光度计,双束分光光度计
double contrast enema technique双对比灌肠造影术
double triaxialcollapsible test双线法三轴湿陷试验