The earth is a dynamic body .

地球是一个能动的天体。

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Next, create your dynamic body, which has a position, initial linear velocity, and angle.

接下来，创建动态物体，它具有方位、初始线速度和角度。

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So now we have a ground body. We can use the same technique to create a dynamic body.

我们已经有了一个地面体，我们可以使用同样的方法来创建一个动态物体。

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"Besides life-saving applications in fire and rescue, the potential to record dynamic scenes of a human body could have a variety of other biomedical uses including studying or monitoring breathing, cardiac beat detection and analysis, or measurement of body deformation due to various stresses during exercise, " Ferraro says.

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But Harvard stayed financially healthy during the lean years of the Depression partly by enlarging its undergraduate student body--two dynamic presidents during that period, A. Lawrence Lowell and James B.

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This is because they rely on static models of weight loss rather than dynamic models that account for the way the body adjusts to reducing food intake by reducing energy expenditure.

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