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drill collar annulus meaning in Chinese

钻铤环空

Related Words

  1. annulus pressure
  2. champing collar
  3. collar cavity
  4. raise collar
  5. asymmetric collar
  6. collar straight
  7. collar incision
  8. collared finchbill
  9. neck collar
  10. collar mark
  11. drill clamspring
  12. drill collar
  13. drill collar bore
  14. drill collar curvature
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