英语词汇“extremely high frequency”是什么意思，“extremely high frequency”的读音、用法及例句翻译-乐坝网

词汇	extremely high frequency
释义	extremely high frequencyn.（名词）abbr. EHF【缩写】 A radio-frequency band with a range of 30,000 to 300,000 megahertz.极高频：无线电频谱中30,000至300,000兆赫间的频率
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