研究了有限元方法的原理，单元剖分及构造插值函数，有限元方程的形成和解法。
The text describe the theory of the finite element method, the cell dividing and constructing interpolation function, the forming and solution of finite element method equation.
对于常规的直流电测深法，由于其电极距一般以近似等对数间隔逐渐增大，使得网格单元剖分呈现出不规则性。
In the traditional resistivity sounding method, the pole distance increases little by little with equal logarithm interval, which brings on grid irregular elements.
对大型汽轮发电机空载磁场的实例计算表明，圆弧边界单元具有剖分简单、精度高等优点。
The example of calculating the excitation field at no-load for a large turbogenerator shows that the advantages of arc elements are highly accurate and easy to use.
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