lu·mi·nos·i·ty /ˌluməˈnɑsəti/
  亮度光明,光輝,光度
  lu·mi·nos·i·ty /ˌluməˈnɑsətɪ/ 名詞
  亮度,光度,發光度,明亮度,明度
  luminosity
  亮度
  Lu·mi·nos·i·ty n. The quality or state of being luminous; luminousness.
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  luminosity
       n : the quality of being luminous; emitting or reflecting light;
           "its luminosity is measured relative to that of our sun"
           [syn: brightness, brightness level, luminance, luminousness,
            light]