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单词 fresnel
释义

WordReference Random House Unabridged Dictionary of American English © 2024
fres•nel  (frə nel, Fr. frā nel),USA pronunciation n. 
  1. Physicsa unit of frequency, equal to 1012 cycles per second.
  • named after Augustin Jean Fresnel (1788–1827), French physicist 1935–40

Collins Concise English Dictionary © HarperCollins Publishers::
fresnel /ˈfreɪnɛl; French: frɛnɛl/ n
  1. a unit of frequency equivalent to 1012 hertz
Etymology: 20th Century: named after Augustin Jean Fresnel (1788–1827), French physicist
Collins Concise English Dictionary © HarperCollins Publishers::
Fresnel /French: frɛnɛl/ n
  1. Augustin Jean (oɡystɛ̃ ʒɑ̃). 1788–1827, French physicist: worked on the interference of light, contributing to the wave theory of light
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