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单词 violet shift
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violet shift
violet shift n. Astronomy displacement of spectral lines towards the violet end of the spectrum; decrease in the wavelength of electromagnetic radiation; usually called a blue shift; cf. redshift n.
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the world > the universe > radio source > [noun] > blue shift
blueshift1933
violet shift1959
1959 Listener 3 Dec. 971/1 The spectroscope will reveal a violet shift for one component, and a red shift for the other, according to the familiar Doppler principle.
1977 J. Narlikar Struct. Universe iii. 76 Hence negative z is interpreted as ‘blue-shift’ or ‘violet-shift’.
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