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单词 infrared
释义 infrared
 /in'freuh red"/,  n.  
  1. the part of the invisible spectrum that is contiguous to the red end of the visible spectrum and that comprises electromagnetic radiation of wavelengths from 800 nm to 1 mm.
  adj.  
  2. noting or pertaining to the infrared or its component rays: infrared radiation. Cf. ultraviolet.
 Also, infra-red.
 [1825-35; INFRA- + RED1]
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