巷道煤柱 meaning in English
heading chain pillar
Examples
- Determination for coal pillar size in comprehensive mining roadway
综采巷道煤柱尺寸的确定 - The study and apply of the coal pillar width parameter in along stull tunnel
沿空巷道煤柱宽度参数的研究与应用 - Heading chain pillar
巷道煤柱 - Stress analysis and parameter optimization of coal pillar in gateway of fully mechanized caving face
综放工作面回采巷道煤柱应力分析与参数优化 - Stress analysis and optimization of parameters of coal pillar in the stoping tunnel of comprehensive mechanized coal mining face
综采工作面回采巷道煤柱应力分析与参数优化