exhaust shutter

基本解释

Shutter Mounted Industrial Exhaust Fan is designed for use inside the building with vents outside.
快门式工业排风扇，是专为建筑内部排气而设计的。
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Shutter Mounted Industrial Exhaust Fan models are available with a blade diameter of 12", 18", 24" or 30".
快门式工业排风扇根据型号，刀片直径分别为12英寸，18英寸，24英寸或30英寸。
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The concentrate blending plant regulates the fume volume from pre-drying fume exhaust system via controlling the opening of shutter valve.
备料车间预干燥排烟系统自投产以来一直是通过控制百叶阀的开启度来调节其烟气流量。