controlled circulation boiler

例句：

1. 1. Thenew controlled circulation boiler has significantly improved the efficiency of the plant's heating system.
   新型受控循环锅炉显著提高了工厂供暖系统的效率。
2. 2. The engineers carefully designed the controlled circulation boiler to meet the specific needs of the industrial process.
   工程师们仔细设计了受控循环锅炉，以满足工业过程的具体需求。
3. 3. The controlled circulation boiler is an essential component in the industrial process, providing efficient and reliable heating solutions.
   受控循环锅炉是工业生产中不可或缺的一部分，提供高效可靠的加热解决方案。