煤矿回采 meaning in English

stope of coal mines

Discussion on roadway support management of small coal mine working face in pingdingshan mining area
浅谈平顶山地区小煤矿回采工作面巷道支护管理
Discussion on destruction mechanism and strengthening support of deformation of recovery roadway in coal mine
浅谈煤矿回采巷道变形破坏机理及其加强支护
Application of loose circle measurement technology of surrounding rock in the mining roadways of shuangliuta colliery
围岩松动圈测试技术在双柳煤矿回采巷道中的应用
Probing into gas control technique by high roof - fall roadway and highly - located bore - holes in working face of shangzhuang coal mine
尚庄煤矿回采工作面顶板高冒巷和高位钻孔治理瓦斯技术探讨