pulley axle

例句：

1. 1. The car's engine is running smoothly,thanks to the new pulleyaxle.
   汽车的引擎运行得非常顺畅，多亏了新的滑轮轴。
2. 2. The old bicycle had a worn-out pulley axlethat needed to be replaced.
   旧自行车有一个磨损的滑轮轴需要更换。
3. 3. Theengineer carefully inspected the pulleyaxle before installing it on themachine.
   工程师在安装机器上的滑轮轴之前仔细检查了它。