Research on Methods of Gas Pulling Out of Coal Bed with Soft Roof, Soft Coal and Soft Floor
MIAO Liu-xian
ZHENG Ling
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Publication Date:2007-01-01
Online Publishing Date:2025-08-15(First online date of this platform, not the publication date of the document)
Pages:5( 122-126 )
JOURNAL OF HENAN POLYTECHNIC UNIVERSITY(NATURAL SCIENCE)

JOURNAL OF HENAN POLYTECHNIC UNIVERSITY(NATURAL SCIENCE)

PKUISTIC
ISSN:1673-9787
Year, Vol.(Issue):2007,26(2)