《房委会空气调节及通风系统承办商名册》
Housing Authority List of Air Conditioning and Ventilation Contractors
J型通风系统
J-shape ventilation system
U+L两进一回通风系统
U+L ventilation system of two intakes and one retu
阿斯曼[通风]干湿计
Assmann (ventilated) psychrometer
阿斯曼通风干湿球湿度计
Assmann aspiration psychrometer
安全负压通风系统
Safety subatmospheric pressure ventilation system
半地下通风库
semi-underground ventilation storeroom