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underground blast hole drilling meaning in Chinese

井下炮眼钻凿

Related Words

  1. underground fire
  2. underground parking
  3. underground palace
  4. underground burying
  5. underground propagation
  6. underground opening
  7. underground substation
  8. underground street
  9. underground music
  10. underground system
  11. underground biomass
  12. underground blast
  13. underground blast-hole drilling
  14. underground blasting
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