Zobrazeno 1 - 1
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pro vyhledávání: '"IU Quanlin"'
Publikováno v:
Gong-kuang zidonghua, Vol 47, Iss 12, Pp 19-24 (2021)
The sealing quality of extraction drilling is the key factor affecting gas extraction and outburst elimination. In order to solve the problems of poor quality of passive hole sealing, low gas concentration in drilling and extraction, and cumbersome p
Externí odkaz:
https://doaj.org/article/59b4ff5700f04bd7a31b9c1c7e543378
