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-edged praise.双重意义的表扬
double universal coupler双万向联轴节
double elliptical system双重椭圆星系
double-solvent process复溶剂选择精制过程
double-ended retractor双头拉钩, 双头牵开器
double pole single throw双刀单掷
double branch stop valve双向止流阀
double-pulse selection双脉冲选择
double detonation driver双爆轰驱动段
double skin construction双层结构