long hole method 中文意思是什麼
long hole method
解釋
深孔法-
Comprehensive gas drainage method with long directional drilling hole
定向長鉆孔綜合抽放瓦斯方法 -
Construction technique of foam method for drilling long gas extraction hole
泡沫法施工瓦斯抽放長孔工藝 -
In this paper, technology for water injection by long bore hole in fully mechanized mining face was studied, relevant experience and some parameter were acquired, which provide a reference for using this method in similar faces
以鄭州礦區典型的「三軟」煤層綜放工作面為對象,試驗研究了長鉆孔注水防塵技術,取得了「三軟」煤層長鉆孔注水經驗和參數,為鄭州礦區類似條件的工作面推廣該方法提供了參考。 -
Abstract : in this paper, technology for water injection by long bore hole in fully mechanized mining face was studied, relevant experience and some parameter were acquired, which provide a reference for using this method in similar faces
文摘:以鄭州礦區典型的「三軟」煤層綜放工作面為對象,試驗研究了長鉆孔注水防塵技術,取得了「三軟」煤層長鉆孔注水經驗和參數,為鄭州礦區類似條件的工作面推廣該方法提供了參考。
分享友人