根据胜利油田典型地质模型的构造特点，本文提出了变密度声波方程交错网格高阶差分正演方法。
According to structural feature of typical geologic models in Shengli oilfield, the paper presented staggering mesh high-order difference forward simulation of density-variated acoustic equation.
又对于变密度、变比热、变导热系数这样的更一般的情况也推立了六个二阶热传导的微分方程。
By the way, for the case of variable density, specific heat as well as thermal conductivity, we have been successful to deduce other similar six heat transfer differential equations.
在支配方程推导及求解过程中，采用了霜层变密度分析并引入了据试验数据拟合的传质系数。
The equations feature variable frost density. Meanwhile mass transfer coefficients used in prediction are derived from the published experiment data, which used to be based on Lewis analogy.
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