doubleleafadj.双翼的
doubleadj.双重的;成双的;两倍的v.翻一番;使 ... 加倍n.两倍;双份
double swing bridge双翼平旋桥
double-angle beam双角钢梨梁
double model filter双模型滤波
double tube reactor套管反应器
double cyclic codes双环循环码
double-heart wood复心材
double-pentaprism双五棱镜
double record check双记录校验
double motion mixer双动混合机
double manipulative双面推床