“first-order spectrum”的概念、定义、翻译、参考文献-科学参考

单词	first-order spectrum
释义	first-order spectrum [¦fǝrst ´ȯrd·ǝr `spek·trǝm] ^SPECTROSCOPY A spectrum, produced by a diffraction grating, in which the difference in path length of light from adjacent slits is one wavelength.
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