flue damper

例句：

1. 1. The flue damper is designedto control the flow of exhaust gasesfrom the furnace.
   烟道调节器的设计是为了控制从炉膛排出的废气流量。
2. 2. The flue damper was installedto improve the efficiency of the heating system.
   安装烟道调节器是为了提高供暖系统的效率。
3. 3. The flue damper isresponsible for maintaining a safe and controlled environmentin the factory.
   烟道调节器负责维护工厂内安全可控的环境。