infrared
/ˌɪnfɹəˈɹɛd/ 名词 B2中文： 红外线
- The electromagnetic radiation of a wavelength longer than visible light, but shorter than microwave radiation, having a wavelength between 700 nm and 1 mm.
- A specific wavelength in this range.
- A device that emits infrared radiation.
复数 infrareds
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