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词汇 luminosity
释义
luminosity
noun uk/ˌluː.mɪˈnɒs.ə.tɪ/ us/ˌluː.məˈnɑː.sə.t̬i/
[ U or S ]发亮,放光
the state of producing or reflecting bright light; the state of appearing to shine
The photographer achieved the luminosity in the image through careful manipulation in the darkroom. 摄影师通过在暗房中的精心操作,实现了图像中的发光效果。
The light was crystalline, giving everything a shimmering luminosity. 光线晶莹剔透,使一切都闪闪发光。
[ U or C ] environment , physics specialized(恒星、彗星等的)光度、亮度
the brightness of a star, comet, etc.
The object of the project is to investigate the mass and luminosity of nearby stars. 这个项目的目标是调查附近恒星的质量和亮度。
The stars have high surface temperatures (50,000 kelvins and up) and luminosities (100,000 suns and greater). 这些恒星的表面温度很高(50,000开尔文或更高),亮度也很高(相当于100,000个太阳或更亮)。
[ U ] physics specialized光度;亮度
the measurement of the rate at which an object produces radiation
The X-ray luminosity from a galaxy cluster can be used to find its centre very accurately. 星系团的X射线光度可以用来非常准确地找到其中心。
See: luminous
    更多例句
  • The amount of light entering the building is controlled, allowing maximum brightness and luminosity.
  • The sheer peach lotion gives skin a warm kiss of luminosity , as though you'd just had a facial.
  • Cool and red, AU Mic shines with about a tenth the Sun's luminosity and has about half its mass.
  • The system independently detects brightness and luminosity for the best quality photo.
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