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单词 foot-candle
释义

foot-candle

noun

foot-can·​dle ˈfu̇t-ˈkan-dᵊl How to pronounce foot-candle (audio)
: a unit of illuminance on a surface that is everywhere one foot from a uniform point source of light of one candle and equal to one lumen per square foot

Word History

First Known Use

1906, in the meaning defined above

Medical Definition

foot-candle

noun

foot-can·​dle
variants or footcandle or foot candle
-ˈkan-dᵊl How to pronounce foot-candle (audio)
: a unit of illuminance on a surface that is everywhere one foot from a uniform point source of light of one candle and equal to one lumen per square foot
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更新时间:2026/6/15 12:21:38