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

As you can see, I've picked up an area with almost no changes in colors and luminosity.
正如你所看到的，我已经选择了一个领域，几乎没有任何变化，颜色和亮度。
An oval-shaped radiation pattern provides a wider field of view with higher luminosity than standard LEDs, making the devices ideal for outdoor applications where readability in sunlight is essential.
椭圆形发光模式的LED与标准的LED产品相比，不但扩大了视角，而且增强了亮度，这使得这些器件特别适合于要求在阳光下清晰可读的户外应用。
One of them is that their luminosity is heavily biased to the UV portion of the spectrum, and they're unusually bright.
共同性质之一是它们的发光体极度偏向于光谱的紫外线部分，异常明亮。
( of a light) imparting a deathlike luminosity.
（指光线）发出像死了一般的光亮。
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。
Paradoxical as it may seem, the value of a star's luminosity does not depend on the nuclear reactions taking place in the interior.
看来十分奇怪的是，恒星的光度竟然与发生在内部的核反应无关。
With continued use, skin appears transformed as it recaptures youthful firmness and luminosity.
持续使用，皮肤会出现转变，因为它夺回青春的坚定性和亮度。
In this paper, we investigate the relation between the redshift distribution and the luminosity function of extragalactic objects.
在本文中，我们研究河外天体的红移分布和它们的光度函数之间的关系。
Some celestial bodies similar to galactic nebulas but without any luminosity sometimes reveal their presence as dark patches obscuring the light of stars beyond them.
某些与银河星云相似但不发光的天体，有时看来象块黑色补丁，遮住了周围的星光。