光速是一个不变常数。
光速是一个不变常数。
这篇报告描述了某一个人为假定的自然界的基本物理常数,似乎并不是一直保持恒定不变。
The report describes how one of the supposed fundamental constants of Nature appears not to be constant after all.
The ideal gas constant doesn't change, temperature doesn't change, and so v we just have minus nRT integral V1, V2, dV over V.
理想气体常数不变,温度也不变,因此,是负的nRT,积分从v1到v2,dv除以。
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