motor pulley

例句：

1. 1. The car's engine is connected to the motor pulley.
   汽车的引擎与马达滑轮相连。
2. 2. The engineer used a motor pulley to lift the heavy machine.
   工程师使用一个马达滑轮来提升这台重型机器。
3. 3. The train used a motor pulley to move its wheels.
   火车使用一个马达滑轮来移动它的轮子。