movement weight pulley

例句：

1. 1. The engineerused a moving weight pulley to reduce the vibrations in the machine.
   工程师使用一个移动重量滑轮来减少机器中的振动。
2. 2. The moving weight pulley helped to stabilize the platform during the assembly process.
   移动重量滑轮在组装过程中帮助稳定平台。
3. 3. The moving weight pulley was designed to improve the efficiency of the conveyor belt system.
   移动重量滑轮被设计用来提高输送带系统的效率。