It's a state function, so we're at constant temperature and pressure, and now we want to consider some chemical change or a phase transition or you name it.
这就是态函数，我们处于恒定的温度和压强之下，然后考虑某些化学变化或者相变，或者你想考虑的东西。
Shock temperature measurement is a crucial subject in equation-of-state and high-pressure phase transition investigations.
冲击温度测量是物态方程及高压相变测量中的一项至关重要的课题。
The change of sound velocity with pressure, dryness degree, void-fraction, and phase-transition coefficient are analyzed. Some important conclusions are derived.
分析了两相流体中音速随压力、干度、汽隙率、相变系数等的变化关系，并从中得出了一些重要的结论。
Then the equation of state for phase transition region is achieved, where the cold pressure is constant and the energy includes the effect of the phase transition entropy.
在此基础上给出了相变区的物态方程，其中冷压为平台，内能计入了相变熵的影响。
Then the equation of state for phase transition region is achieved, where the cold pressure is constant and the energy includes the effect of the phase transition entropy.
在此基础上给出了相变区的物态方程，其中冷压为平台，内能计入了相变熵的影响。
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