| 单词 | electromagnetic radiation |
| 释义 | > as lemmaselectromagnetic radiation electromagnetic radiation n. radiation in the form of electromagnetic waves; cf. electromagnetic wave n.Visible light, infrared waves, ultraviolet light, microwaves, gamma rays, and X-rays are all forms of electromagnetic radiation, differing from each other only in their wavelength and frequency. ΚΠ 1891 Proc. Royal Soc. 1890 48 472 The Rumford Medal has been awarded to Professor H. Hertz for his work on Electro-magnetic Radiation. 1940 G. Gamow Birth & Death of Sun iii. 83 In the heavier elements,..neutrons entering the nucleus must get rid of their energy through electromagnetic radiation, and the nucleus emits hard γ-rays. 2003 Pop. Sci. May 92 (caption) The Humvee-mounted Active Denial System..can strike from at least one-third of a mile away, using a focused beam of electromagnetic radiation. < as lemmas |
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