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infra-red的英文翻译是什么意思,词典释义与在线翻译:
英英释义
名词 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