小煤柱 meaning in English
cob
Examples
- Discussion on small pillar support roadway bolt support
小煤柱护巷锚杆支护探讨 - Application of grouting cable anchor in small coal pillar roadways
注浆锚索在小煤柱巷道群加固工程中的应用 - Small coal pillar technology to protect mine roadway and application in ningwu mine
宁武煤矿小煤柱护巷技术及其应用 - Application and analysis of supporting by small pillar tunnelling along goat tunnel
沿空掘进小煤柱巷道支护应用与分析 - Analysis and governing of the gas in the working face of the fully - mechanized sub - level caving in the small coal pillars
小煤柱综放工作面瓦斯涌出分析及治理