那么动能和动量，取决于你的参考系。

Now, the kinetic energy and the momentum depend on your reference frame.

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本文建立了母体参数的坐标参考系；

This paper establishes the parameters of mother-to coordinate reference system;

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例如，它并不在具有，加速度的参考系中成立。

For instance, it doesn't hold in a reference frame which itself is being accelerated.

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同时性取决于你从那个参考系来观察，不是吗？

Simultaneity depends on the system from which you observe it, right?

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第二定律如第一定律，也只在惯性参考系下成立。

Like the First Law, the Second Law only holds in inertial reference frames.

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但是，这条基本定律并在,任意参考系中并不成立。

Now, this law, this very fundamental law does not hold in all reference frames.

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但是，这条基本定律并在,任意参考系中并不成立。

Now, this law, this very fundamental law does not hold in all reference frames.

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