The principle of primary air curtain machine is to move the wind wheel rolling stock motor, a door to the weak invisible space room heating and cooling, heating and cooling to prevent loss.

风幕机的原理首要是以电机股动风轮滚动，构成一道微弱无形的风门来间隔室内的冷暖气，防止冷暖气的丢失。

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The principle of primary air curtain machine is to move the wind wheel rolling stock motor, a door to the weak invisible space room heating and cooling, heating and cooling to prevent loss.

风幕机的原理首要是以电机股动风轮滚动，构成一道微弱无形的风门来间隔室内的冷暖气，防止冷暖气的丢失。

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