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infra red的英文翻譯是什么意思，詞典釋義與在線(xiàn)翻譯：
英英釋義
名詞 infrared:
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the infrared region of the electromagnetic spectrum; electromagnetic wave frequencies below the visible range
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electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
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having or employing wavelengths longer than light but shorter than radio waves; lying outside the visible spectrum at its red end
