把空气压缩向下喷成的无形门帘;风幕;风障;

The traditional exhaust hood and canopy hood with attached air curtain have different principles.
传统排风罩和气幕上吸罩是两种工作原理不同的局部排风设备.
来源:互联网摘选Air-umbrella forms the air-curtain whose air comes into the intake and goes out into the outlet.
空气伞从进风口吸入空气、再从出风口将空气喷出、形成空气屏障.
来源:互联网摘选Air Curtain Display Cabinet The material of appearance is collision.
风幕陈列柜外观采用优质防撞型材,不变形,耐腐蚀,无缝拼接,外观豪华气派.
来源:互联网摘选Snowflakes in the air curtain formed snow, drifting slowly, the whiteMontreal.
雪片在空中形成了雪帘, 徐徐飘下, 洒落满地洁白.
来源:互联网摘选简答网 · 双语新闻

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