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
  • 通過(guò)井下生產(chǎn)實(shí)踐表明：?jiǎn)瓮戎稳嵝匝谧o支架采煤法和側向放煤技術(shù)相結合是開(kāi)采大傾角厚煤層一個(gè)新的、有效的采煤方法。
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