coal - lane

英 美
  • 煤巷
  • coal n.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
  • lane n.小路;小巷;行车道;跑道;航道
    1. Outburst prevention technique of excavating in coal seam will be directly concerned colliery safety production and excavates taking over.
      摘要突出煤层煤巷掘进防突直接关系到煤矿的安全生产和采掘接替。