An effort has been also made to diagnose the dynamic causes of displacement of the surrounding rocks and the occurrence of changes of bearing stre...
分析了沿空留巷围岩移动的力学根源和巷道煤帮内支承应力变化的规律。
An effort has been also made to diagnose the dynamic causes of displacement of the surrounding rocks and the occurrence of changes of bearing stre...
分析了沿空留巷围岩移动的力学根源和巷道煤帮内支承应力变化的规律。
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