extremely high frequency
柯林斯词典
1. N a radio frequency between 30 000 and 300 000 megahertz (30 000～300 000兆赫的)极高频 ( abbr: EHF)
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1. N a radio frequency between 30 000 and 300 000 megahertz (30 000～300 000兆赫的)极高频 ( abbr: EHF)