double rig双隐睾
doubleadj.双重的;成双的;两倍的v.翻一番;使 ... 加倍n.两倍;双份
double-h class ridge estimator双h型岭估计
double-fold disappearing stair双折隐梯
double-column hydraulic planer双柱液压刨床
double reference beam holography双参考光束全息学
double porosity -throat system双重孔喉系统
double lumen endobronchial tubes双腔支气管
Double seats for stretching legs双人坐蹬
double-edge safety razor blade双面安全刀片