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air shutter
archit. 空气调节阀 (闸门)
avia. 空气挡板; 节气活门
met. 风门; 风挡
tech. 阻气器; 调风门; 空气闸门; 关气机
air shutter: 9 phrases in 4 subjects
Astronautics1
Automobiles2
Refrigeration1
Technology5