coal drift

 
  • 煤巷

coal drift的用法和样例:

例句

  1. In the drivage of the coal drift in the Zhangji coal mine, most of the coal drift is revealed to be composite roof.
    在中厚煤层复合顶板条件下,合理确定小煤柱尺寸及巷道支护参数,可提高煤炭回收率,保证巷道正常掘进和在服务期间内的使用。
  2. Roof supporting of thick coal drift in Sitai mine
    四台矿厚煤层综采顺槽及切眼顶板支护问题探讨
  3. Method of Coal Drift Heading through Fault
    煤巷掘进过断层方法
  4. Optimize the Construction Technique of Coal Drift Bolt Support
    煤巷炮掘锚杆支护施工技术优化
  5. Numerical Simulation of the Excavation Sequence in Long-Span Full Coal Drift
    大跨度全煤巷道开挖顺序数值模拟研究
  6. Role of Crossing Layer Gas Drainage Technology in Driving Coal Drift
    穿层抽放在煤巷掘进中的作用
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