Unseal and Recovery of NO.2 Coal Column Faces in NO.2 Coal Mine of Pingdingshan Coal Company
LI Yao-min
HONG Yu-shen
XU Yan-wei
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Publication Date：2006-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 21-23 )