double lip重复唇,复唇
doubleadj.双重的;成双的;两倍的v.翻一番;使 ... 加倍n.两倍;双份
double-professional teacher双师型
double-articulated reductor二级链式减速器
double-acting pile-hammer双动打桩机
double-image effect picture双像效应图像
double beam spectrophotometer双束分光光度计
double-entry book-keeping复式簿记法
double inclined cross section双斜切面
double stage oxygen regulator双级氧气调节器