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单词 dioptrics
释义

WordReference Random House Unabridged Dictionary of American English © 2024
di•op•trics  (dī optriks),USA pronunciation n. (used with a sing. v.)
  1. Opticsthe branch of geometrical optics dealing with the formation of images by lenses.
  • see dioptric, -ics 1635–45

Collins Concise English Dictionary © HarperCollins Publishers::
dioptrics /daɪˈɒptrɪks/ n
  1. (functioning as singular) the branch of geometrical optics concerned with the formation of images by lenses
Etymology: 20th Century: from dioptre + -ics
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