pulley cover

例句：

1. 1.The pulley cover is designed to protect the rope from getting tangled.
   滑轮罩设计用来保护绳索不缠绕。
2. 2.The engineer carefully fitted the pulley cover to ensure it would fit snugly.
   工程师仔细地安装滑轮罩以确保它能够紧密地贴合。
3. 3. The pulley cover was a simple yet effective way to prevent accidents in the workshop.
   滑轮罩是一种简单而有效的方法，用于防止车间内的事故。