通风换气次数 air change rate ; [矿业] ventilation rate
通风换气装置 Ventilation and Air Change Equipment ; ventilation breather
换气通风机 air renewal ventilator
猪场通风换气系统 AirWorks System
绿林通风换气系统公司 Greenwood Air Management Ltd
通风换气式光伏幕墙 VPVCW
库房内通风换气的热量 Air Change Load
非通风换气方式 no draft ventilation
安全壳换气通风系统 EBA
通风换气可以降低密闭空间内的污染物水平，研究者们如是说。
Ventilation can help reduce the level of pollutants in closed rooms, the researchers said.
墙壁、屋顶需要用双层材料，托盘木架还可用来做通风换气、防晒遮阳的架子。
Two layers of pallets serve as the home’s walls, ceiling, and as a sunscreen to shade the structure and allow for ventilation.
待会议客人全部离去后，关闭空调，打开会议室的门窗通风换气。
Conference guests to be left after the closure of air conditioning, open the Windows and doors of the meeting room for ventilation.
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