有限差分法（Finite Different Method）将问题的基本方程和边界条件以简单、直观的差分形式来表述，先从物理现象引出相应的微分方程，再经离散化得出差分方程，由参数的...
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the finite different method 有限的不同方法
finite-different time-domain method 时域有限差分法
A software of simulating water movement in confined aquifer was developed with finite different method.
根据有限差分方法，编制了承压含水层渗流模拟软件。
This model has simulated redistribution of infiltration and soil-water due to precipitation and irrigation at the profile by finite different method.
此模型通过有限差分法模拟了降雨或灌溉水人渗、降雨或灌溉水以后土壤水分在剖面上的重新分配情况。
The paper describes the two-dimension electric-magnet field of the GMA by the finite different method including its theory and application. Also the structure and principle of GMA is studied.
利用有限差分法求解GMA二维电磁场问题，在超磁致伸缩电—机械转换器结构研制的基础上，结合有限差分法计算原理及应用问题对GMA的电磁场进行数值计算。
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