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petzval surface meaning in Chinese

玻兹伐面

Related Words

  1. petzval condition
  2. petzval sum
  3. petzval lens
  4. petzval type objective
  5. petzval protrait objective
  6. petzval curvature of field
  7. petzval protrait objective
  8. petzval sum
  9. petzval type objective
  10. pet．et．petroleum ether
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