大气可看成绝热平衡下的双原子理想气体。
Assume that atmosphere is made of diatom ideal gas in adiabatic equilibrium.
再对相间传热作出热平衡或绝热假设，得到完全平衡的和部分平衡的声速的具体表达式。
After introducing an adiabatic or thermo-equilibrium assumption between phases, the expression reduces to a particular expression for the complete or partial equilibrium speed of sound.
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