英语词汇“lumen-hour”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	lumen-hour
释义	lumen-hour lumen-hour [′lü·mən ¦au̇r] (optics) A unit of quantity of light (luminous energy), equal to the quantity of light radiated or received for a period of 1 hour by a flux of 1 lumen. Abbreviated lm-hr.
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