| 单词 | illumination unit |
| 释义 | illumination unit (extremely rare) n WORD FAMILY illumination unit n a measure of illumination Hypo|Hyper footcandle a unit of illuminance on a surface that is everywhere 1 foot from a point source of 1 candle L, lamberta cgs unit of illumination equal to the brightness of a perfectly diffusing surface that emits or reflects one lumen per square centimeter lux, lxa unit of illumination equal to 1 lumen per square meter; 0.0929 foot candle phota unit of illumination equal to 1 lumen per square centimeter; 10,000 phots equal 1 lux light unit a measure of the visible electromagnetic radiation |
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