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pencil of rays meaning in English

光线束,光线锥
光锥

Examples

  1. Convergent pencil of rays
    会聚光线束

Related Words

  1. pencil
  2. headache pencil
  3. pencil bag
  4. eyebrow pencils
  5. central pencil
  6. pencil tube
  7. cuof pencils
  8. pencil slate
  9. pencil sketch
  10. caustic pencil
  11. pencil of quadratic curves
  12. pencil of quadric hypersurfaces
  13. pencil of spheres
  14. pencil of x rays
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