提出了基于样条函数技术对石油馏份所作的若干种典型汽液平衡计算步骤，并给出了令人满意的数值计算结果。

The procedures of some typical vapor-liquid equilibrium calculations of petroleum fractions based upon spline techniques are given in the paper with good agreement with laboratory data.

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本文以物料平衡为目标函数，选择液相摩尔分数为迭代变量，提出了多组元汽-液平衡闪蒸的矩阵法和对角线矩阵法。

The matrix method and diagonal matrix method of multi-component VLE flash are established in the paper by choosing mole Numbers as iteration variables and material balance as objective function.

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本文评述了混合热和汽液平衡数据间相互推算的方法。

The methods of mutual prediction between heat of mixing and vapor - liquid equilibria data are reviewed.

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