n. the quality of being luminous; emitting or reflecting light
n. 光明, 光辉, 光度, 亮度
[计] 亮度
1. The luminosity of the stars can tell us a lot about their distance from Earth.
星星的亮度可以告诉我们很多关于它们与地球距离的信息。
2. The artist used bright colors to enhance the luminosity of her painting.
这位艺术家使用亮色来增强她画作的亮度。
3. Scientists measure the luminosity of a galaxy to understand its composition.
科学家测量一个星系的亮度以了解其成分。