在一个惯性坐标系中与物体静止质量相当的能量； 等于静止质量乘以光速的平方。

Equivalent and Difference of Natural Coordinate System with Right Angle Coordinate System When Constraining Anti-force Comes into Being;

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这个道理可以参考著名的爱因斯坦质能方程式，E=mc2, 能量E是质量m乘以光速c的平方项。

Einstein's famous equation, E=mc2, outlines how energy is equivalent to mass times the square of the speed of light.

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