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单词 footcandle
释义
footcandle
(once / 2363863 pages)
n

WORD FAMILY
footcandle: footcandles
n a unit of illuminance on a surface that is everywhere 1 foot from a point source of 1 candle
Hyper
illumination unit
a measure of illumination
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更新时间:2025/1/3 19:16:43