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step drilling meaning in Chinese

分段钻进

Related Words

  1. steps
  2. stepping core
  3. integration step
  4. straight step
  5. dummy step
  6. step by step control
  7. connecting step
  8. step tube
  9. back step
  10. step mark
  11. step drill
  12. step drill with four edges
  13. step ejector pin
  14. step elevator input
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