我做着这种旋涡式的手势，模仿着屏幕上这些光点的移动方式。

My hand made swirling motions, mimicking the action onthe monitors.

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在我多次在森林中的搜索中，我发现所有恶魔身上的光都来自于一个似乎是某种形式的旋涡。

After much searching of the forest, I found the demon light from which the beasts are emanating. It appears to be some type of vortex or portal.

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自由旋涡气动窗口是利用流体微团作自由旋涡运动的离心力来平衡大气与光腔压力差，来作为高能激光束的输出窗口。

The free vortex aerodynamics window is used to be the window of high power laser beam, which takes advantage of the centripetal force of the free vortex motion of fluid.

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