English中文
electromagnetic spectrum /ɪlˌɛktɹəʊmɐɡnˈɛtɪk ˈspɛktɹəm/ n

中文：电磁波谱

中文 · 电磁波谱
Meaning：Electromagnetic waves that are classified in ascending order of energy (frequency); they propagate at the speed of light (300,000 km/s).
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Electromagnetic spectrum

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