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Decreasing Mining Losses for the Room and Pillar Method by Replacing the Inter-Room Pillars by the Construction of Wooden Cribs Filled with Waste Rocks

机译：通过用填充废物岩石的木制婴儿床的施工来减少房间和支柱方法的采矿损失

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Krzysztof Skrzypkowski;
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年度 2020
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5. THE DESIGN OF COAL MINE ROOF SUPPORT AND YIELDING PILLARS FOR LONGWALL MINING IN THE APPALACHIAN COALFIELD (ROCK MASS CLASSIFICATION, STRESS, FAILURE). [D] . NEWMAN, DAVID ALAN. 1985

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Decreasing Mining Losses for the Room and Pillar Method by Replacing the Inter-Room Pillars by the Construction of Wooden Cribs Filled with Waste Rocks

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