Belt-pulley

• 皮带轮

Belt-pulley的用法和样例：

例句

1. The belt started wrapping up on the tractor pulley.
   皮带开始绕在拖拉机的皮带轮上。
2. Attach the pulley which is held by hand with screws.
   用螺丝安装皮带轮的手持部分。