Feasibility study of repeated mining with fully-mechanized top-coal caving in district sublevel pillar of ultra-thick seam in Gengcun coal mine
CUI Feng
LIU Zhenbo
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Publication Date：2020-12-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 28-35 )