在所有的惯性参照系中可能出现的运动全都是同一种类的。
The class of all possible motions is the same in all inertial frames.
讨论了在非惯性参照系中如何应用功能原理和机械能守恒定律。
The paper discusses how to use the principle of conversion between work and potential energy and the law of conservation of mechanical energy in the frame of non-initial reference.
本文讨论了惯性参照系与非惯性参照系，分析了在不同的惯性参照系中做功和机械能守恒问题。
In this paper, inertia reference frame and un-inertia reference frame were studied and questions about mechanical work and conservation of energy in different inertia reference frame were discussed.
本文讨论了惯性参照系与非惯性参照系，分析了在不同的惯性参照系中做功和机械能守恒问题。
In this paper, inertia reference frame and un-inertia reference frame were studied and questions about mechanical work and conservation of energy in different inertia reference frame were discussed.
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