room and pillar meaning in English
房柱式采煤法
Examples
- Technical analysis on feasibility of new room and pillar mining method
新型房柱式采煤法可行性技术分析 - Analysis on developing new room and pillar mining method in shendong coalfield
神东煤田发展新型房柱式采煤方法的分析 - By measuring goaf gas concentration distribution in 3205 working face of taopinggou coal mine , we initially identified gas concentration distribution rules in coaf of room and pillar working face , therefore provided scientific basis to prevent and cure gas accidents of goaf in such working face
摘要通过对桃坪沟煤矿3205回采工作面采空区瓦斯浓度分布的实际测定，初步查明了房柱式回采工作面采空区瓦斯浓度的分布规律，为今后此类工作面采空区瓦斯防治、防止采空区瓦斯事故的发生提供了科学依据。