同根派生 wrist pin相关词英汉例句A piston pin fits into a round hole in the piston.活塞销装在活塞的环形的孔里。The piston end of the rod is attached to the piston by the piston pin, or wrist pin.连杆的活塞端用活塞销或销轴安装在活塞上。wrist pin更多例句