double gapadj.双火花间隙的doubleadj.双重的；成双的；两倍的v.翻一番；使 ... 加倍n.两倍；双份double redundancy system双冗余系统double-cone up rolling锥体上滚double slide shot window双滑动镜头窗double longitudinal stay双纵向拉线Double-layer shielding双层屏蔽double-casement window双层开关窗double Poisson processes双Poisson过程double-decker sandwich双层三明治double-sided alignment双面对准double connected domains双连通域