heat control valve

例句：

1. 1. Theheat control valve is responsible for maintaining theoptimal operating temperature of the engine.
   热控制阀负责保持发动机的最佳运行温度。
2. 2. The engineers carefully checked the heat control valve toensure it was functioning properly.
   工程师们仔细检查了热控制阀，确保其正常工作。
3. 3. During maintenance, the technician replaced thefaulty heat control valve with a newone.
   在维护期间，技术人员用一个新的故障热控制阀替换了旧的。