熱線 — meaning in English
rè xiàn
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English meaning
- infrared noun Light energy just beyond the red end of the visible spectrum, felt as heat but invisible to the eye.
Senses
熱線 is used for these senses in English:
- infrared (uncountable) The electromagnetic radiation of a wavelength longer than visible light, but shorter than microwave radiation, having a wavelength between 700 nm and 1 mm.
infrared — full definition
- noun Light energy just beyond the red end of the visible spectrum, felt as heat but invisible to the eye.
- adj Relating to or using this kind of radiation.
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