因此，热力学研究的是平衡态的宏观系统，以及如何从，一个平衡态过渡到另一个平衡态，它完全是建立在经验的基础上的。
So it applies to macroscopic systems that are in equilibrium, and how to go from one equilibrium state to another equilibrium state, and it's entirely empirical in its foundation.
这种自我调节的力量和机制，使得汉语夫妻称谓系统完成由一种平衡向另一种平衡的一次次过渡。
This kind of regulative system makes Chinese couple' s appellations change from one kind of balance to the other kind.
在绿洲荒漠过渡区生态系统的热量平衡中，占比例最大的是潜热通量，其次为感热通量和土壤热通量。
The biggest proportion in the heat balance is the potential heat flux, followed by sensible heat flux and soil heat flux.
当激子系统趋近统计平衡时，该公式就自动过渡到具有角动量的费米气能级密度公式。
When the exciton system closes to the statistical equilibrium, this exciton state density automatically approaches to the Fermi-gas nuclear level density with angular momentum.
当激子系统趋近统计平衡时，该公式就自动过渡到具有角动量的费米气能级密度公式。
When the exciton system closes to the statistical equilibrium, this exciton state density automatically approaches to the Fermi-gas nuclear level density with angular momentum.
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