利用熵密度对自由能密度的限制，导得熵密度变化率。
By taking use of the limit of entropy density on free energy density, it deduces changing rate of entropy density.
对于有限温度情形，通过索末菲展开，得到了能量密度、自由能密度以及熵密度的解析公式。
For the case of finite temperature, the analytical energy density, entropy density and free energy density are acquired with help of Sommerfield expansion to the Fermi-Dirac integrals.
二氧化碳的密度分布和自由能分布有一个明显的“镜面对称”的结构，高密度区域对应自由能的深阱。
The density profile and the free energy profile of carbon dioxide have a "mirror symmetry", where the high density coincides with the free energy well.
二氧化碳的密度分布和自由能分布有一个明显的“镜面对称”的结构，高密度区域对应自由能的深阱。
The density profile and the free energy profile of carbon dioxide have a "mirror symmetry", where the high density coincides with the free energy well.
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