On this heat transfer model the differential equations were based, and the finite difference complete concealed grids were used in the numerical analysis computation.
根据喉部沉积的传热模型建立了偏微分方程组，采用有限差分完全隐式格式进行数值分析计算。
Exact equation which is also called complete differential equation. The general books on differential equations only simply introduce basic solution.
在一般微分方程讲义中，只简单介绍恰当方程的基本解法。
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