turning machinery of swing bridge

例句：

1. 1.The turning machinery is responsible for the smooth operation of the machine.
   转动机械负责机器的平稳运行。
2. 2.The turning machinery was designed to improve efficiency in manufacturing processes.
   转动机械被设计用来提高制造业过程的效率。
3. 3. The turning machinery is essential for the production of many products.
   转动机械对于生产许多产品来说是不可或缺的。