wrist pin

同根派生

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。