英语词汇“quantity of light”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	quantity of light
释义	quantity of light : luminous energy that is the product of mean luminous flux by time < quantity of light expressed in lumen-hours >
随便看	Hs HS h's h-scope HSE hse hse h section hsg HSH h-shaped hsi hsia hsi-fan hsin hsiung hsiung-nu HSM h-stretcher ht ht HT HT HTA htg

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