in a closed system, unless there is external shock to the system
势场中任意两点之间都存在势差,而且一切势场总
有由高势位向低势位自发转变的趋势,若从热力学的
观点来看,这种转变过程最终都可以归结为某种作功
过程。
in a closed system, unless there is external shock to the system
势场中任意两点之间都存在势差,而且一切势场总
有由高势位向低势位自发转变的趋势,若从热力学的
观点来看,这种转变过程最终都可以归结为某种作功
过程。
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