extremely thick coal seam

英 美
  • 特厚煤层
  • coal n.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
  • extremely adv.非常;极其
  • seam n.缝;接缝vt.缝合;接合;使有纹vi.有裂缝
  • thick adj.厚的;浓密的;粗的;愚笨的
    1. Introduced the prevention methods and practice experience for the sixth pit in Xingshang Coal Mine adopted longwall inclined slicing experence mining method.
      介绍了兴山矿六井采用倾斜分层走向长壁采煤法开采特厚煤层,防治自然发火的经验。