“extremely low frequency”的概念、定义、翻译、参考文献-科学参考

单词	extremely low frequency
释义	extremely low frequency [ek`strēm·lē `lō `frē·kwǝn·sē] ^{COMMUNICATIONS} A frequency below 300 hertz in the radio spectrum. Appreviated ELF.
随便看	Fischer polypeptide synthesis Fischer projection Fischer's distribution Fischer spheroid of 1960 Fischer's salt Fischer-Tropsch process Fischer-Yates test fish fish-bone antenna fished joint fisher fisheries conservation Fisher-Irwin test Fisher's ideal index Fisher's inequality fishery Fishes fisheye fish-eye lens fish-eye stone fish gelatin fish glue fishing fishing boat fishing grounds

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