英语词汇extremely high frequency怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	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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