Which is the vapor pressure of the pure material times the, and the composition of the liquid phase, Raoult's law.
这个常数是纯物质的蒸汽压，乘以液相的组分，Raoult定律。
Composition and thermodynamics character of LNG vapor and liquid vary as liquid's vaporizing, so LNG physical characteristic must be calculated in the simulate process.
储存过程中LNG的气液两相组成和热力学性质一直随着液体的蒸发而不断变化的，模拟计算时需要对LNG热物性进行计算。
They are different from each other in toluene contents, the carbon isotope composition of ethane and the nitrogen and mercury vapor contents, etc.
二者在甲苯、乙烷的碳同位素组成，氮气和汞蒸气含量等方面存在着一定的差异。
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