| 单词 | far-infrared radiation | 
| 释义 | far-infrared radiation [¦fär in·frǝ`red ´rād·ē`ā·shǝn]  ELECTROMAGNETISM Infrared radiation the wavelengths of which are the longest of those in the infrared region, about 50-1000 micrometers; requires diffraction gratings for spectroscopic analysis.  | 
	
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