autochangeover unit

例句：

1. 1. The autochangeover unit is responsible formonitoring the temperature of the engine oil.
   自动换向单元负责监测发动机油的温度。
2. 2.The engineers designed a new autochangeover unit to improve efficiency.
   工程师们设计了一个新的自动换向单元以提高效率。
3. 3. Theautochangeover unit was installed in thefactory's main control room.
   自动换向单元被安装在工厂的主控制室。