drivage efficiency

英 美
  • 掘进效率
    1. The cut way and hole parameters affect the drivage efficiency and cost.
      掏槽方式及布孔参数影响着掘进效率和成本。
    2. Due to its uncontinuity of operation, its tunneling efficiency is greatly influenced.
      由于其作业的不连续性,影响了其掘进效率的发挥。