| 单词 | x-ray spectrum |
| 释义 | > as lemmasX-ray spectrum X-ray spectrum n. Physics a spectrum of emitted radiation consisting of or containing X-rays; the distribution of the X-rays emitted by something, esp. as a source of potential information about the emitter. ΘΚΠ the world > matter > physics > electromagnetic radiation > light > chromatism > [noun] > spectrum > types of Fraunhofer spectrum1837 gas spectrum1859 interference spectrum1860 flame spectrum1862 absorption spectrum1864 fluorescence spectrum1867 band spectrum1869 comparison spectrum1877 infra-red1881 emission spectrum1888 X-ray spectrum1910 the world > matter > physics > atomic nucleus > radioactivity > X-rays > [noun] > graph of intensity X-ray spectrum1983 1910 Nature 4 Aug. 139/1 (heading) X-ray spectra. 1983 Jrnl. Physics B 16 i. 79 The large dimension of the spectrograph slit..allowed us to observe the x-ray spectra of H- and He-like F viii and F ix ions. 2007 Sci. News 6 Jan. 10/1 The width of the X-ray spectrum indicates that the galaxy's central black hole is whirling around at 90 percent of its maximum possible rate of rotation. < as lemmas |
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