| 单词 | periodical colours |
| 释义 | > as lemmasperiodical colours ΘΚΠ the world > matter > colour > [noun] > spectrum > periodical colours periodical colours1829 1829 Philos. Trans. (Royal Soc.) 119 307 The fifteen shaded rectangles, which are the minima of the new series of periodical colours which cross both the ordinary and the prismatic images. 1852 W. Whewell Astron. & Gen. Physics 87 We refer to the phenomena of diffraction, polarisation, and periodical colours, produced by crystals and thin plates. < as lemmas |
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