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-reduction motor两级减速电动机double cuff- technical二袖套法double helical spur gear人字齿轮, 双螺旋齿轮double-byte coded font双字节编码字体, 双字节编码字型Double-eyed Fig Parrotn.双眼无花果鹦鹉double-bridged polymer双桥聚合物double - qualification“双师型”double-elements method双单元法double welded butt joint双面对焊接double primary carcinoma双原发癌