Then, this paper introduces a new calculation method of superposition theory.

在此基础上，提出了本文的叠加理论计算公式。

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Then using the superposition principle of well group, the analytic theory of single drainage hole is spread to multiple drainage holes in the element.

然后，应用井群的叠加原理，将单个排水孔的解析理论推广到单元内多个排水孔的情况。

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Rationality of the method is proved in theory of(linear)circuit superposition principle.

通过电路叠加原理从理论上证明了该方法的合理性。

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