luminosity

英 [ˌluːmɪˈnɒsəti]

美 [ˌluːmɪˈnɑːsəti]

n.  (恒星等的)光度，亮度; 发光; 发亮

复数：luminosities　

TOEFL计算机

BNC.25798 / COCA.17466

柯林斯词典

• N-UNCOUNT （恒星等的）光度，亮度
  Theluminosityof a star or sun is how bright it is.
  1. 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。

英英释义

noun

• the quality of being luminous
  1. its luminosity is measured relative to that of our sun
  Synonym:brightnessbrightness levelluminanceluminousnesslight

双语例句

• For example, some accretion disks in binary star systems occasionally undergo large, temporary increases in luminosity.
  例如，有些双星系统里的吸积盘，偶尔会短暂地大幅增加亮度。
• The particle size is homogeneous with characteristics of high hardness, strong grinding force, rapid polishing, high efficiency and light luminosity.
  产品粒度均匀，具备硬度高，磨削力强，抛光快，效率高，光度亮等特点。
• Human research on the microcosm is the motive force behind the development of particle accelerators, which have been advancing towards higher luminosity and better performance.
  更高的能量和更高的亮度是用于高能物理研究的加速器发展的两大前沿。
• Lightness: That property of a colour that distinguishes how intense its hue is, e.g. distinguish a light blue from a dark blue or a red from a pink. See also Luminosity, Value.
  明度：区别色相明暗的颜色特性，例如浅蓝与深蓝或红色粉红色的区别。
• Determination of Titania in Ti Ore with DAM Luminosity Method
  用二安替吡啉甲烷光度法测定钛矿中二氧化钛
• Cannot maintain luminosity when replacement ink is lighter than deleted ink.
  当替换墨迹比所删除墨迹淡时，则无法保持发光度。
• Mysterious patterns of luminosity glowed in the night.
  神秘的光体图案在黑夜中闪亮。
• The mercury content of esculent fresh water fishes produced from Shanghai was determined by means of the cold atomic absorption luminosity.
  以上海地区出产的食用淡水鱼为试样，通过冷原子吸收光度法检测鱼体中的汞含量。
• ( of a light) imparting a deathlike luminosity.
  （指光线）发出像死了一般的光亮。
• A luminosity that appears over swamps or marshes at night; ignis fatuus.
  夜间在旷野或沼泽出现的闪光；鬼火。