【运输】把空气压缩向下喷成之无形门帘【运输】气帘

文摘:受民用建筑大门空气幕的启发，将“洁净空调技术”中的“洁净棚理论”，创新并应用于综采工作面的防尘工程，设计了能阻止采煤机在截煤过程中产生的呼吸性粉尘向司机处扩散的隔尘装置——风帘。

air embolism

compressed-air brake system for vehicles

air jet for air jet liquids on surfaces

trading port open to sea, land and air

wet-type air cooler【制冷】化工

air-raid warden

by the air circulation in the air conditioning plant

secondary air (supplementary air) detoxication of exhaust gases