The downhole exudates mainly including travertine, Fe and Mn etc. have produced continuously from the seepage sites of underground mine since Liuqiao No. 2 Coal Mine was put into production.
刘桥二矿投产两年多来，井下的渗水部位不断有钙、铁、锰质等析出物形成。
The downhole exudates mainly including travertine, Fe and Mn etc. have produced continuously from the seepage sites of underground mine since Liuqiao No. 2 Coal Mine was put into production.
刘桥二矿投产两年多来，井下的渗水部位不断有钙、铁、锰质等析出物形成。
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