candela
柯林斯詞典
1. N the basic SI unit of luminous intensity; the luminous intensity in a given direction of a source that emits monochromatic radiation of frequency 540 × 1012 hertz and that has a radiant intensity in that direction of () watt per steradian 坎德拉; 發(fā)光強(qiáng)度國(guó)際單位 ( symbol: cdAlso called candle, standard candle)
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