A new method to calculate the volume and fugacity of saturated vapor is obtained.

本文得到了一种不用状态方程计算饱和蒸汽摩尔体积的新方法。

The parameter in fugacity-activity model is obtained by combining PSRV equation with MHVI to simulate the experiment result.

逸度-活度参数采用PSRV方程和MHVI混合规则拟合实验数据结果。

The article sums up the constitutional equation of authentic gas and recommends a convenient formula of calculating fugacity.

本文归纳了真实气体的状态方程，并推荐一个计算逸度的简便公式。

However, the temperatures and oxygen fugacity of magmas at high level magma chamber decreased along with fractional crystallization.

但在高位岩浆房中，随着分离结晶作用的进行，岩浆的温度和氧逸度逐渐降低。

Under the influence of the subduction, the source mantle of the potassic lamprophyres has a high geothermal gradient and oxygen fugacity.

由于这种作用的影响，使钾质煌斑岩的源区地幔处于地温梯度高、氧逸度高的不稳定状态。