Numerical solution is given to mathematical model of formation temperature field by full implicit finite difference method.
并利用有限差分方法，对温度场数学模型进行数值求解。
A numerical approach based on finite difference time domain (FDTD) method was presented for investigating the diffraction effect of a metal grating fabricated in QWIP.
本文给出了一种基于时域有限差分法(FDTD)的数值方法，计算制备在QWIP器件上的金属光栅的衍射效应。
The paper predicts the changing tendency of groundwater resource in Changma alluvial fan by numerical modeling, applying the method of finite difference and irregular polygon cells.
应用有限差分方法，采用不规则多边形剖分，对昌马冲洪积扇区地下水资源数量的变化趋势进行了模拟计算。
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