Grouting reinforced technology for soft floor of soft roof, coal and floor seam in Zhengzhou Mining Area
ZHAO Zhen-zhong
SONG Shun
GUO Xu-hua
ZENG Wei-yong
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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：3( 39-41 )