operating mechanism

例句：

1. 1. The operating mechanism of the machine is complex and requires careful adjustment.
   这台机器的操作机制复杂，需要仔细调整。
2. 2.The engineer designed an operating mechanism that could be easily operated by a single person.
   工程师设计了一种可以由一个人轻松操作的操作系统。
3. 3.The new operating mechanism has greatly improved the efficiency of the production line.
   新的操作系统大大提高了生产线的效率。