The fact shows that the single leg type shield support and the technology of discharging coal in the side is an efficient method of coal mining under the condition of steep thick coal seam.
英
美
- 通过井下生产实践表明:单腿支撑柔性掩护支架采煤法和侧向放煤技术相结合是开采大倾角厚煤层一个新的、有效的采煤方法。