revolving disk

例句：

1. 1. The computer's revolving disk is constantly spinning to keep the software up-to-date.
   电脑的旋转磁盘不断旋转，以保持软件更新。
2. 2. The engineer used a revolving disk to rotate the gears in the machine.
   工程师使用一个旋转磁盘来转动机器中的齿轮。
3. 3. The revolving disk was responsible for the smooth operation of the machine.
   旋转磁盘负责机器的平稳运行。