给多方过程以恰当的定义，并对理想气体多方过程作详尽的探讨，为研究实际气体的实际过程提供了更多的线索。
A suitable definition for adiabatic process equation and study on the ideal gas adiabatic process in detail provide more clues for practical gas process.
讨论了变质量系统的多方过程、绝热过程及等温过程的能量关系，并与常质量系统的多方过程、绝热过程及等温过程的性质进行了比较。
In this paper, the internal energy and heat of the polytropic process, the adiabatic process and the isothermal processes of the varying mass system are discussed.
讨论了变质量系统的多方过程、绝热过程及等温过程的能量关系，并与常质量系统的多方过程、绝热过程及等温过程的性质进行了比较。
In this paper, the internal energy and heat of the polytropic process, the adiabatic process and the isothermal processes of the varying mass system are discussed.
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