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

• 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。
• Cannot maintain luminosity when replacement ink is lighter than deleted ink.
  当替换墨迹比所删除墨迹淡时，则无法保持发光度。
• 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。
• 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。
• 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。
• In unborn luminosity, take a nice rest.
  在无生的明光中，好好休息。
• The cell luminosity factor was detected by flow cytometry, and the cell survival rate was calculated with trypan blue exclusion.
  以流式细胞仪测量细胞发光率，以台盼蓝拒染法测算细胞存活率。
• 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。
• ( of a light) imparting a deathlike luminosity.
  （指光线）发出像死了一般的光亮。
• Mysterious patterns of luminosity glowed in the night.
  神秘的光体图案在黑夜中闪亮。