友情提醒：点击
，可以收听真人发音
，可以收听真人发音 
小测验：选择正确的单词
- 论坛新贴
luminousness
基本释义
- 透光率
词形变化
- 名 词：lu'mi·nous·ness副 词：lu'mi·nous·ly
英英解释
1个名词解释
- the quality of being luminous; emitting or reflecting light
[同] brightness, brightness level, light, luminance, luminosity, luminousness
[例]- its luminosity is measured relative to that of our sun
- the quality of being luminous; emitting or reflecting light