luminosity中文什么意思

n.
1.光明，光辉。
2.【物理学】发光度；(辐射能的)发光效率。
3.发光物，发光体；辉点。
+更多解释...4. 【原子能】(射束中的)加速粒子数密度。

• absolute luminosity:    绝对发光度; 绝对亮度; 绝对明度
• adaptation to luminosity:    亮度适应
• bolometric luminosity:    辐射热发光度; 热光度

例句与用法

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1. Mount battie without losing its definition would take on a blue luminosity .
   远处的巴蒂山沉浸在一派蓝茫茫的暮蔼之中，轮廓朦胧。
2. Mount battie without losing its definition would take on a blue luminosity .
   远处的巴蒂丹山沉浸在一派蓝茫茫的幕霭之中，轮廓朦胧。
3. The cloud should then have an infrared luminosity thousands of times the sun's bolometric luminosity .
   云的红外光度应为太阳热光度的几千倍。
4. The quasars cannot shine for longer than a few million years with their present luminosity .
   在几百万年以后，类星体将不可能具有他们今天那样的发光度。
5. 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。

英文释义

名词

1. the quality of being luminous; emitting or reflecting light; "its luminosity is measured relative to that of our sun"
   同义词：brightness, brightness level, luminance, luminousness, light

百科释义

Luminosity is generally understood as a measurement of brightness. Each discipline, however, defines the term differently, depending on what is being measured.