luminosity
英 [ˌluːmɪˈnɒsəti]
美 [ˌluːmɪˈnɑːsəti]
n. (恒星等的)光度，亮度; 发光; 发亮
复数：luminosities
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.- 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。
- For a few years its luminosity flared up to about 10,000 times the present-day luminosity of the Sun.
英英释义
noun
- the quality of being luminous
- its luminosity is measured relative to that of our sun
双语例句
- 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。 - 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。 - 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。 - W hat a showing it was! These unprecedented energy and luminosity values impose new and stringent requirements on the machine design and performances.
这种前所未有的能量和亮度给设计与运行带来了严酷的考验。 - 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。 - ( of a light) imparting a deathlike luminosity.
（指光线）发出像死了一般的光亮。 - 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。 - And observations show a decline in luminosity of the debris, which centered on the former site of the star.
观测显示原星球位置为中心的发光体已经减少。 - In unborn luminosity, take a nice rest.
在无生的明光中，好好休息。 - As soon as the contracting cloud becomes opaque to its own infrared radiation, its luminosity will drop abruptly.
一旦收缩云变得对它的红外辐射不透明时，它的光度便要急剧地降低。