doubleleafadj.双翼的
doubleadj.双重的;成双的;两倍的v.翻一番;使 ... 加倍n.两倍;双份
double frame hammer双柱式锤
double Salchow jump后内结环两周跳
double play batting双杀打
double rigging luff2-1与2-1复绞辘
double-worm mixer双螺旋混合机
double elastic mesh双弹性网格
double-hole shear双孔微剪切法
double warp machine双针床经编机
double furnace wall双层炉壁
double circuit jack双电路插孔