调节者

例句：

1. 1. The regulator is responsible for maintaining the temperature in the room.
   调节器负责保持房间的温度。
2. 2. The engineer used a regulator to adjust the flow of water.
   工程师使用调节器来调整水的流动。
3. 3.The regulator was designed to prevent overheating of the engine.
   调节器设计用来防止发动机过热。