厚煤层大采高综放开采的煤岩冒放规律及放煤工艺参数研究
후매층대채고종방개채적매암모방규률급방매공예삼수연구
Study on Coal Rock Caving Laws and Technological Parameters of Top-Coal Caving of Fully Mechanized Mining with Great Cutting Height for Thick Coal Seam
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