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In the laser this damping mechanism can be visualized as follows.

在激光器中，这种阻尼机理可以如下理解。

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This prevailing luminous source can be visualized as becoming a wild dance of flame that settles and spends itself into material.

盛行的光源可被形象化为火焰失控的舞蹈，将自己安置并耗费在材料中。

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Forces can be visualized as momentum currents, for Newton's Second Law is equivalent to the continuity equation for momentum in integral form.

牛顿第二定律实质上是动量连续性方程的积分形式，因而，力可以被理解为动量流。