The average grain diameter and cumulative relative curve of red sandstone are obtained by the grain size analysis.

对红砂岩进行粒度分析，得出其平均粒径和概率累计曲线。

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The average grain diameter and cumulative relative curve of red sandstone are obtained by the grain size analysis.

对红砂岩进行粒度分析，得出其平均粒径和概率累计曲线。

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