ducted air meaning in English
导管空气
外管空气
外函空气
Examples
- Methods of testing for rating ducted air terminal units
评定管道式空气终端装置的测试方法 - Non - ducted air conditioners and heat pumps - testing and rating for performance
非管道式空调和热泵.性能试验和评定 - Ducted air - conditioners and air - to - air heat pumps - testing and rating for performance
管道通风空调和空气对空气热泵.性能的试验和额定值 - 2 3 . installation and maintenance of gas - fired ducted air heaters of rated input not exceeding 70 kw net 2nd and 3rd family gases - specification
额定输入净值不超过70kw的燃气管道式空气加热器的安装和维修