double ace特级飞行员
doubleadj.双重的;成双的;两倍的v.翻一番;使 ... 加倍n.两倍;双份
double wavelength双波长
Double Ownerships双层所有权
double wavelenghs双波长
double tax system两次税制
double-steepingn.二次浸渍
double-arm mill双臂压机
Double-porosity双孔隙
double arm's mass
double enveloping二次包络
double left shift双倍左移位