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heading and bench tunneling method meaning in Chinese

导洞与层阶法

Related Words

  1. benched
  2. reeling bench
  3. bench man
  4. bench height
  5. bench machine
  6. bench table
  7. substitude bench
  8. drawing bench
  9. bench hardening
  10. team bench
  11. heading and bench method
  12. heading and bench mining
  13. heading and footing
  14. heading and stall method
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