In Xuzhou Coal mining Area the groundwater hazard is serious due to the larger mining depth and complicated hydrogeological conditions.
徐州矿区开采深度大，水文地质条件复杂，水害严重。主要突出水源为奥陶系含水层。
In Xuzhou Coal mining Area the groundwater hazard is serious due to the larger mining depth and complicated hydrogeological conditions.
徐州矿区开采深度大，水文地质条件复杂，水害严重。主要突出水源为奥陶系含水层。
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