Research on gas pre-drainage in coal roadway strips by combined ordinary drilling and directional drilling
JI Pengfei
GUO Ying
ZHANG Lei
KONG Xiangguo
WANG Xu
ZHOU Yuxuan
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Publication Date：2021-01-10
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 61-66 )