Zobrazeno 1 - 1
of 1
pro vyhledávání: '"sealing and concentration increasing"'
Autor:
HUANG Xueman, BA Quanbin
Publikováno v:
Meikuang Anquan, Vol 51, Iss 11, Pp 61-65 (2020)
The large dip and broken soft low permeability coal seam in Ewirgol Mining Area in Xinjiang has the problems of low pre-drained gas concentration and fast attenuation, and the extraction effect is not ideal. In order to solve this technical problem,
Externí odkaz:
https://doaj.org/article/e6f3e29239d14236812ac0be609be3db
