doubleword双字doubleadj.双重的；成双的；两倍的v.翻一番；使 ... 加倍n.两倍；双份double - factor theory双因素理论Double-star connection双星形接线double overhead camshaft双顶置式凸轮轴Double - microcomputer双微机double-helical gearbox人字齿轮减速器double-pancake winding双饼绕组double cognitive context双重语境观double cylindrical shell加筋双层圆柱壳double cross combination四元杂交double windering machine复绕机