The intermediate demister shapes air flow swirl generated by impeller rotation to get bigger particle and improve the arresting efficiency of the next filter screen.

中间除雾装置将叶轮旋转而成的气流旋涡整形，使得粒子进一步变大，从而提高下一个滤网的捕集效率。

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The gas motion in a cylindrical swirl chamber is analysed and an expression with a spiral locus of air flow toward the chamber center is derived.

本文对圆柱形涡流室内气体流动进行了分析，导出了在室内气体流动轨迹呈螺线状进入室中心时的表达式。

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Ventilation of starting rotation device ventilation pipe is from Axial flow of swirl hole inner surface takes air leads to vacuum cavity, model existence of scale effect.

起旋室通气井通风系由旋流洞内表面轴向水流“挟带”空气而致空腔内气体压强减小进入，模型存在缩尺效应。

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