Of course in the reversible case, you're always pushing against an external pressure, which is essentially equal to the internal pressure.
当然在可逆的情况下,外压力,总是,等于内部压力。
Somebody say it real loud. Yes, the system is working on the surroundings, right? It's pushing out against them.
有人很大声的回答了,对,系统在对外做功,他把外界向外推开。
No one, until this time, had suggested that a system would be subjected to quantization except for light.
在他之前,还没有人提出过,除光系统外的量子化系统。
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