| 1. | For example , heating of the air could be a duct mounted hot water coil , duct mounted electric elements , duct mounted gas fired burner , reverse cycle air conditioning unit , room mounted panel radiator etc
例如，空气加热的方式有：通过热水盘管风管送风，电加热风管送风，燃油锅炉取暖风管送风，制冷逆循环机组制热，地板辐射采暖，等等。 |
