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单词 luminous flux
释义 luminous flux
Symbol Φv. A measure of the rate of flow of light, i.e. the radiant flux in the wavelength range 380–760 nanometres, corrected for the dependence on wavelength of the sensitivity of the human eye. It is measured by reference to emission from a standard source, usually in lumens
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更新时间:2025/6/23 22:53:07