同时通过对气体压缩因子、黏度随压力、温度的变化，建立了这些参数和无因次压力的关系；
And based on the relations of compressibility factor and viscosity of the gas versus pressure, the relations of these parameters versus dimensionless pressure are also built.
临界压力与临界温度一起用来确定流体存在的状态(液体或气体)，并用来计算压缩因子。
Critical pressure is used along with critical temperature to determine the state in which a fluid exists (liquid or gas) and to calculate compressibility factors.
为了描述真实气体的混合性质，根据纯物质和混合物的压缩因子计算了压力混合效应和过剩体积。
For a description of the mixing behaviour the compressibility factors of the pure substances and of the mixtures were used to calculate the mixing effect of the pressure and the excess volume.
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