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
- Besides, active power generation of these plans depends on the luminosity, which is very variable during day time.
此外这些电厂所发出的有功功率决定于天气的亮暗度，而其在白天变化是很大的。 - 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。 - 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。 - 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。 - 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。 - 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 - 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。 - 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。 - 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。 - Mysterious patterns of luminosity glowed in the night.
神秘的光体图案在黑夜中闪亮。