topping machanism

例句：

1. 1.The new topping mechanism has greatly improved the efficiency of the machine.
   新的顶盖机制大大提高了机器的效率。
2. 2. The engineer designed a new topping mechanism to solve the problem of wear and tear.
   工程师设计了一个新型的顶盖机制来解决磨损问题。
3. 3. The topping mechanism is responsible for controlling the temperature of the gas inside the furnace.
   顶盖机制负责控制炉内气体的温度。