double veeadj.双v形的(X形的)doubleadj.双重的；成双的；两倍的v.翻一番；使 ... 加倍n.两倍；双份double chamber furnace双室炉double word addressing双字寻址double inductive shunt双电感分流器double-ended spanner双头扳子double bowed callipers弧形腿卡钳double clog-leg cams双弯销double diameter piston双径活塞double glassed windows双层玻璃窗double-acting hammer复动式锻锤double-linked carbon双键碳原子