The reluctivity matrix is obtained by using the trigonometric function transformation and the form of coefficient matrix is simplified.
该方法适用于任意阶多项式描述
化曲线的非线性谐
场问 
的求
，
高了计算的精度。
阻率The reluctivity matrix is obtained by using the trigonometric function transformation and the form of coefficient matrix is simplified.
该方法适用于任意阶多项式描述化曲线的非线性谐场问 的求，高了计算的精度。
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