| 释义 |
〔supergiant〕Any of various very large bright stars, such as Betelgeuse or Rigel, having a luminosity that is thousands of times greater than that of the sun.超巨星：任何一种十分巨大的明亮的星，例如参宿四或参宿七，明亮度比太阳强几千倍〔nit〕A unit of illuminative brightness equal to one candle per square meter, measured perpendicular to the rays of the source.尼特：照明亮度单位，相当于每平方米烛光。与光源发出的光垂直来测量 |