If you are adding a "Drop shadow" layer effect, and you have the layer Style dialog open to the Drop shadow Settings, you can move the shadow around by clicking and dragging in the image.

如果你下大添加一个“投影”的图层效果，并且你已经打开了图层样式的对话框并进行了投影设置，你可以通过点击并拖动图形的阴影来移动图形的投影。

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The research implies that the effect is better when the wind machine is open than when is closed, and the velocity in the layer of electricity is fit for requests and its distribution is equal.

试验研究表明：埋管风机和接力风机开启的效果优于关闭时，发电机层风速分布满足要求且分布均匀。

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