采用回转式空气预热器的热回收系统，可以使加热炉热效率保持在86%以上。

Heat recovery system with revolving air preheater can keep the heat efficiency above 86%.

youdao

采用回转式空气预热器的热回收系统，可以使加热炉热效率保持在86%以上。

Heat recovery system with revolving air preheater can keep the heat efficiency above 86%.

youdao