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来源：雅诚德英语网
The paper reports analytic expressions on the electric potential and field lines, and the non linear field expressions derived from the potential function.
推导了边界内电场势函数和力函数的解析表达式，以及非线性场表达式；
The paper reports analytic expressions on the electric potential and field lines, and the non linear field expressions derived from the potential function.
推导了边界内电场势函数和力函数的解析表达式，以及非线性场表达式；