Owing to its native feature and the influence by artificial exploitation, the shallow groundwater is vertical cross-flow supplement to medium layer groundwater.

由于含水系统本身特点及人工开采影响，浅层水对中层地下水垂直越流补给。

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Owing to its native feature and the influence by artificial exploitation, the shallow groundwater is vertical cross-flow supplement to medium layer groundwater.

由于含水系统本身特点及人工开采影响，浅层水对中层地下水垂直越流补给。

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