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electromagnetic spectrum

技术 spectre électromagnétique
 英语 词库
electromagnetic spectrum
军队, 后勤 The range of electromagnetic radiation groups: electrical waves, Hertzian waves, infrared rays, visible light, ultraviolet rays, X-rays, gamma rays and cosmic rays. Hertzian waves are those waves used for telecommunications. They group the waves used by radio/sound equipment, electro-magnetic waves and satellites. Transmissions through fiber optic use the visible part of the electromagnetic spectrum. (FRA)
美国 The range of frequencies of electromagnetic radiation from zero to infinity. It is divided into 26 alphabetically designated bands (JP 3-13.1) 亦见 electronic warfare
electromagnetic spectrum
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