sprocket shift claw press ring

例句：

1. 1. Thecar's engine has a sprocketthat engages with the gears.
   汽车的引擎有一个与齿轮啮合的螺旋齿轮。
2. 2. The train used to have asprocket on its wheels for easy turning.
   火车过去在轮子上装有螺旋齿轮，便于转弯。
3. 3. The engineer had toreplace the sprocket on the machine becauseit was worn out.
   工程师不得不更换机器上的螺旋齿轮，因为它磨损了。