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单词 diffraction spectrum
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diffraction spectrum
diffraction spectrum n. a spectrum produced by diffraction.A diffraction spectrum can take various forms, such as bands or fringes of light, or a two-dimensional array of dots or short lines. When used for analysis it may be represented as a graph with peaks corresponding to the angular distribution of the diffracted radiation.
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1841 Rep. 10th Meeting Brit. Assoc. Advancem. Sci. 1840 Reports 134 Fraunhofer..ascribes the horizontal circle to the superposition of diffraction-spectra.
1922 T. M. Lowry Inorg. Chem. xix. 215 Diffraction-spectra are produced by transmitting or reflecting light at a surface.
2011 J. B. Kaler Stars & their spectra ii. 63 You can easily see diffraction spectra by holding a compact disk..up to the light.
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