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

单词	extremely high frequency
释义	extremely high frequency [ek`strēm·lē `hī `frē·kwǝn·sē] ^{COMMUNICATIONS} The frequency band from 30,000 to 300,000 megahertz in the radio spectrum. Abbreviated EHF.
随便看	entry condition entry corridor entry instruction entry point entry portion entry site entry sorting entypy enucleate enumerable enuresis envelope envelope delay envelope delay distortion envelope detector envelope orography envelope soliton envenomation environment environmental biology environmental cab environmental control environmental control system environmental engineering environmental impact analysis

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