英语词汇“extremely low frequency”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	extremely low frequency
释义	WordReference Random House Unabridged Dictionary of American English © 2024 extreme′ly low′ fre′quency, [Radio.] Electronics, Radio and Televisionany frequency between 30 and 300 hertz. Abbr.: ELF, elf 1965–70
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