“luminous efficacy”的概念、定义、翻译、参考文献-科学参考

单词	luminous efficacy
释义	luminous efficacy [`lü·mǝ·nǝs ´ef·ǝ·kǝ·sē] ^OPTICS 1. The ratio of the total luminous flux in lumens emitted by a light source over all wavelengths to the total radiant flux in watts.Formerly known as luminous efficiency. 2. The ratio of the total luminous flux emitted by a light source to the power input of the source; expressed in lumens per watt.
随便看	precipitation area precipitation attenuation precipitation ceiling precipitation cell precipitation clutter suppression precipitation current precipitation echo precipitation effectiveness precipitation electricity precipitation-evaporation ratio precipitation excess precipitation facies precipitation gage precipitation-generating element precipitation hardening precipitation indicator precipitation intensity precipitation inversion precipitation noise precipitation number precipitation physics precipitation static precipitation station precipitation titration precipitation trails

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