luminosity

n.光明；光度；发光体

Luminosity glows through pale velum walls. 耀眼的光芒透射着苍白的幕墙。

Its luminosity is measured relative to that of our sun. 发光度是对比我们太阳的发光度测得的。

Astronomers tacitly assume that stars of the same luminosity and color all have the same mass. 天文学家心照不宣地默认，光度和颜色都相同的恒星具有相同的质量。

The candle is the basic unit of luminosity. 蜡烛是基本照明材料。