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	junior junior junior bantamweight junior college junior featherweight junior flyweight junior heavyweight junior high junior high school junior lightweight junior middleweight junior miss juniors junior varsity junior welterweight juniper juniper oil junipers juniper tar juniper–berry oil junk junk junk art junk bond junk DNA

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