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【单选题】
静电场边值问题的求解,可归结为在给定边界条件下,对拉普拉斯方程的求解,若边界形状为圆柱体,则宜适用( )。A.
直角坐标中的分离变量法
B.
圆柱坐标中的分离变量法
C.
球坐标中的分离变量法
D.
有限差分法
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