2025-10-08 06:53 浏览次数 13
放煤巷道
Study on the support technology in comprehensive caving roadway in deep thick surface earth high stress think seam
深厚表土高应力厚煤层综放巷道支护技术研究
Mechanism analysis of top coal and caving roadway deformation in steep seam
急倾斜煤层放顶煤顶煤破碎与放煤巷道变形机理分析
Analyzing and fuzzy optimal selection of support pattern of caving roadway
放煤巷道支护方案分析及模糊优选