double combustion chamber boiler

例句：

1. 1.The double combustion chamber boiler is a highly efficient energy-saving device.
   双燃烧室锅炉是一种高效的节能设备。
2. 2.The double combustion chamber boiler has been widely used in industrial production.
   双燃烧室锅炉在工业生产中得到了广泛应用。
3. 3. The double combustion chamber boiler is designed to reduce emissions and improve efficiency.
   双燃烧室锅炉设计用于减少排放并提高效率。