So this unique temperature and unique pressure defines a triple point everywhere, and that's a great reference point.
这样,无论在何处,三相点都具有相同的温度和压强,十分适合来作参考点。
If I've got a gas in a container, the pressure of the gas has to be the same everywhere in the container, otherwise it's not equilibrium.
如果把气体装进容器里,容器内各处气体的压强,应该是一样的,否则它就不是平衡的。
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