the number of waves per unit length, used esp. as a spectroscopic unit to represent the frequency of electromagnetic radiation and usually…
单词 | θ78689 |
释义 | the world > matter > physics > electromagnetic radiation > [noun] > wavelength > number of waves per unit length (1) wave number1873 the number of waves per unit length, used esp. as a spectroscopic unit to represent the frequency of electromagnetic radiation and usually… |
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