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bifocal chord of a quadric meaning in Chinese

二次曲面的两焦点弦

Related Words

  1. bifocal
  2. bifocal segment
  3. bifocal tube
  4. bifocal ophthalmoscope
  5. bifocal slasses
  6. pantoscopic bifocal
  7. bifocal lens
  8. bifocal glass
  9. bifocal spectacle
  10. fused bifocal
  11. bifma
  12. bifocal
  13. bifocal contact lens
  14. bifocal demand pacemaker
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