Practice of Comprehensive Gas Extraction on Coal .Seam Roof of First-mined Seams
YU Dong-fang
CAI Zheng-wei
ZUO Jin-bao
Machine-generated Keywords：
Publication Date：2009-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 24-26 )