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。
• Therefore, the luminosity temperature of shock wave radiation source is reliably measured using a six-channel pyrometer.
  文中采取2项措施，用六通道高温计比较可靠地测量了光源的辐射强度和辐射亮度温度，解决了实际测量中遇到的问题。
• 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。
• 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。
• 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 images like this one, Norham Castle, Sunrise where he uses oils like water color, and gives a fluid delicate luminosity that hovers on the edge of a pure blinding vision, that's almost abstraction.
  如在《诺拉姆城堡日出》中，他用水彩画的技法画油画，使得画面中纯粹而炫目的景象周围笼罩着精致流畅的柔光。这几乎是抽象派画法了。
• ( of a light) imparting a deathlike luminosity.
  （指光线）发出像死了一般的光亮。
• 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。
• The only reason for doing this is that it is difficult for people to recognize this inseparability of clarity and emptiness, or luminosity and emptiness, at the beginning.
  而之所以这麽做，唯一的理由是：初学者一开始就要认识这「明空不二」，是很困难的。
• 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。