- the complete range of electromagnetic radiation from the longest radio waves (wavelength 105 metres) to the shortest gamma radiation (wavelength 10–13 metre)
| 单词 | electromagnetic spectrum |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 elec′tromagnet′ic spec′trum,
Collins Concise English Dictionary © HarperCollins Publishers:: electromagnetic spectrum n
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