Measure the mass of the body while it is at rest.

测量物体在静止时的质量。

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The radiation strength is relative to the rest mass and the energy of pa.

辐射强度与辐射粒子的能量、静质量、简并因子有关。

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The radiation strength is relative to the rest mass and the energy of pa.

辐射强度与辐射粒子的能量、静质量、简并因子有关。

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