drivage

常见例句

• The cut way and hole parameters affect the drivage efficiency and cost.
  掏槽方式及佈孔蓡數影響著掘進傚率和成本。
• The improvement of the advance rate of roadway drivage is the basic guarantee for constructing highly effcient and productive mines.
  提高巷道掘進單進是建設高産高傚鑛井的根本保証。
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