luminosity
🇬🇧/ˌluːmɪˈnɒsəti/ 🇺🇸/ˌluːmɪˈnɑːsəti/📚 18311托福The luminosity of a star or sun is how bright it is. (星体或太阳的)光度; 亮度
noun [物质名词][光][天] 光度；光明；光辉
For a few years its luminosity flared up to about 10,000 times the present-day luminosity of the Sun.
有几年它的亮度一度达到了现在的太阳亮度的一万倍左右。
lumin(光) + osity → 发光度
单词造句:
- 网友用“Luminosity”造句精选
- Our present understanding of the Sun's luminosity holds that it should have progressively increased, not decreased, over the course of Earth's history. 当前我们对太阳光度的认知是：在地球的历史进程上，太阳光度应该是逐渐增加而不是减少的。