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单词 illuminance
释义

WordReference Random House Unabridged Dictionary of American English © 2024
il•lu•mi•nance  (i lo̅o̅mə nəns),USA pronunciation n. [Optics.]
  1. illumination (def. 6).
  • illumin(ate) + -ance 1940–45

Collins Concise English Dictionary © HarperCollins Publishers::
illuminance /ɪˈluːmɪnəns/ n
  1. the luminous flux incident on unit area of a surface. It is measured in lux
    Sometimes called: illumination
    Compare irradiance
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