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protective layer excavation meaning in Chinese

保护层开挖

Related Words

  1. tunnel excavation
  2. protective disc
  3. protective clauses
  4. protective group
  5. protective reactance
  6. protective casing
  7. protective aporn
  8. protective plate
  9. protective tape
  10. protective treatment
  11. protective lamp
  12. protective layer
  13. protective layer formation
  14. protective lead glass
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