The measurement of light; comparison of the intensity of light from different sources; the use of a photometer.
| 单词 | θ76474 |
| 释义 | the world > matter > physics > electromagnetic radiation > light > intensity of light, luminosity > [noun] > degree of intensity > measurement of (5) photometry1807 The measurement of light; comparison of the intensity of light from different sources; the use of a photometer. light curve1857 a graph showing the variation in the light received over a period of time from a variable star or other varying celestial object. flicker photometry1897 spectrophotometry1899 the technique of using a spectrophotometer. photometering1917 |
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