foot-candle
/ˈfʊtkændl/noun
- a unit of illumination (now little used) equal to that given by a source of one candela at a distance of one foot (equivalent to one lumen per square foot or 10.764 lux)英尺-烛光(光照度单位, 现罕用)。
单词 | foot-candle |
释义 | foot-candle/ˈfʊtkændl/noun
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