The result showed that the air curtain could eject airflow in stead of auxiliary fan, which raised the active volume and reduced the humidity of the airflow for main ramp.
结果表明多机并联空气幕能代替辅扇引射风流，提高主斜坡道内有效风量，降低风流湿度。
Hot air curtain is strong airflow generated by the rotation of the fan rotor, curtain like flow out a certain velocity and temperature, forming a invisible curtain.
热风幕是通过风轮的转动产生的强大气流，送出一定速度和温度的幕状气流，形成一面无形的门帘。
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