pulley conical disk

例句：

1. 1.The pulley conical disk is used to lift heavy objects.
   滑轮圆锥盘用于提起重物。
2. 2.The engineer designed a new pulley conical disk for the project.
   工程师为该项目设计了一个新的滑轮圆锥盘。
3. 3.The pulley conical disk was installed in the machine to increase its efficiency.
   在机器中安装了滑轮圆锥盘以提高其效率。