Zobrazeno 1 - 1
of 1
pro vyhledávání: '"change rate of gas concentration"'
Publikováno v:
Gong-kuang zidonghua, Vol 45, Iss 9, Pp 103-108 (2019)
In view of the problem of lack of gas drainage concentration control and the high energy consumption of the water ring vacuum pump in the extensive control method of existing coal mine gas drainage control, a coal mine gas drainage concentration cont
Externí odkaz:
https://doaj.org/article/b2fb15b61f594919b39e3be1c975a7c5
