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 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。
• Lightness: That property of a colour that distinguishes how intense its hue is, e.g. distinguish a light blue from a dark blue or a red from a pink. See also Luminosity, Value.
  明度：区别色相明暗的颜色特性，例如浅蓝与深蓝或红色粉红色的区别。
• 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。
• 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。
• 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；
• 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。
• 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。
• 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。
• 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。