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

• Mysterious patterns of luminosity glowed in the night.
  神秘的光体图案在黑夜中闪亮。
• In Wang Yangming's life, there are three strange phenomena: his precognition in Yang-ruing Cave, his awareness of Tao in Longehang and his luminosity on his coming to a close.
  在王阳明生平中，有三个奇怪现象：阳明洞先知、龙场彻悟和临终光明；
• 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 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。
• 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 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。
• 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。
• 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。
• 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。
• 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。