在组分分析的基础上，采用立方型状态方程建立了计算原油体积系数的新方法。

Based on the component analysis, a new calculation method for the volume factor of formation crude oil was proposed by cubic equation of state.

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使用BWRS状态方程，推导出了计算焦耳-汤姆逊系数的完整公式，给出了详细的计算步骤。

Based on the BWRS state equation, the complete formula for calculation Joule-Thomson coefficient is derived, and the detail calculation procedure is given.

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在此基础上，利用相关理论对该流场进行分析，确定出该堆积粉尘状态方程中的待定系数。

Based on experiments and shock polar analysis, the constitutive equations of granular material were determined and calculations were performed.

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And you can find these compressibility factors in tables. If you want to know the compressibility factors for water, for steam, at a certain pressure and temperature, you go to a table and you find it.

各种气体的压缩系数,想知道水或者水蒸气,在某个温度和压强下的，压缩系数，查表就行了，这是实际气体状态方程的。

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