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单词 parfocal
释义

WordReference Random House Unabridged Dictionary of American English © 2024
par•fo•cal  (pär fōkəl),USA pronunciation adj. [Optics.]
  1. Opticsof or pertaining to different eyepieces (of telescopes or microscopes) that all focus their images in the same plane, so that they can be interchanged without readjusting the instrument.
  • par1 + focal 1885–90

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更新时间:2025/7/23 13:47:20