luminosity
n.发光；光明；光度；发光体
网络解释.亮度；发光度；光度；发光体
词形变化:
复数：luminosities
luster daylight sunshine glory
双语例句
1. 1 . For a few years its luminosity flared up to about 10,000 times the present-day luminosity of the Sun.
它的亮度有几年一度达到了现在太阳亮度的一万倍左右。
来自辞典例句