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drilling for ventilation ducts meaning in English

敷设通风钻进

Related Words

  1. ventilation equation
  2. ventilation control
  3. synchronized ventilation
  4. ventilation coefficient
  5. crankcase ventilation
  6. ventilation mechanism
  7. self ventilation
  8. ventilation grill
  9. ventilation pressure
  10. ventilation cowl
  11. drilling for steam
  12. drilling for structure
  13. drilling foreman
  14. drilling gang
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