drivage efficiency

• 掘进效率

drivage efficiency的用法和样例：

例句

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。