• 一类湖泊灰岩灰岩形成

    Another kind of lake is the sinkhole lake, which is formed in limestone.

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  • 一种特征曲线适于灰岩油田

    Another one is suitable to limestone oil reservoir with bottom water drive.

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  • 灰岩一个天然洼地地下土壤造成

    A sinkhole is a natural depression caused by the removal of underground soil by water.

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  • 灰岩一个天然洼地地下土壤造成

    A sinkhole is a natural depression caused by the removal of underground soil by water.

    youdao

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