play movement

• 接头,间隙

play movement的用法和样例：

例句

1. Countershaft assembly uses tapered bearings to reduce end play and extend gear life.
   中间轴组合使用锥形滚柱轴承以减少轴向间隙并延长齿轮使用寿命。
2. The steel wire rope was liable to be caught due to excessive play between the sheave and the cheeks.
   因滑轮与外壳间隙太大，使用时钢索经常夹在里面。