英语词汇“extremely low frequency”是什么意思，“extremely low frequency”的读音、用法及例句翻译-烛光网

词汇	extremely low frequency
释义	extremely low frequencyn.（名词）abbr. ELF【缩写】 A radio frequency below 300 hertz.最低频：低于300赫的无线电频率
随便看	snickersnees snicking snicks snick–a–snee snick–or–snee snide snider snides snidest sniff sniff dog sniffed sniffing sniffle sniffled sniffles sniffling sniffs sniffy snifter snifters snigger snigger sniggered sniggering

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