颁布单位：[University of the Free State] |  颁布时间：2017 |  实施时间：2017 |  学科分类：[["Acid, mine, drainage, --South, Africa, --Mpumalanga","Coal, mines, and, mining--, South, Africa, --, Mpumalanga","Dissertation, (M.Sc.(Geohydrology, (Institute, for, Groundwater, Studies))--University, of, the, Free, State,, 2017"]]

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