与设计独特的风量挡板，它可以产生风在各个方向，工作，以及在各种环境。

With a uniquely designed wind flow baffle, it can produces wind in all directions, working well in various environments.

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这个挡板可以用来确定大致的方向。

This bezel can be used to determine approximate directions.

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挡板的速度会影响球的速度和方向吗？

Does the speed of the paddle influence the ball speed and direction?

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