luminosity是什么意思？

luminosity

英[ˌlu:mɪ'nɒsətɪ] 美[ˌluːmɪˈnɒsəti]

• n. 发光，光明，光度，发光体；

复数：luminosities;

副词：luminously;

形容词：luminous;

例句

• 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.
• 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.
• 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.
• It makes skin daylong smooth and soft, while enchanting the natural luminosity. 柔滑细腻的膏体,如天鹅绒附着在肌肤表面上,给肌肤提供高效的保护和滋润, 使您的肌肤24小时水润光滑,柔软舒爽.
• Using EDTA dispart ray luminosity method test cupreous in gold - cupreous - cadmium liquid. 采用EDTA分光光度法测定金 - 铜 - 镉镀液中的铜.
• 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。

柯林斯高阶英汉双解学习词典释义

• N-UNCOUNT
  （恒星等的）光度，亮度
  The luminosity of a star or sun is how bright it is.
  例句
  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。

英英词典释义

• Noun
  1. the quality of being luminous; emitting or reflecting light;
  "its luminosity is measured relative to that of our sun"

行业词典

• 天文学： 光度；天体表面单位时间辐射的总能量，即天体真正的发光能力。；
  物理学： 亮度；描述对撞机中粒子束性能的量。；
  电工： 视亮度；又称 :视亮度(brightness )；