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heading and bench mining meaning in Chinese

下向梯段式回采

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 blasting
  12. heading and bench method
  13. heading and bench tunneling method
  14. heading and footing
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