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单词
extremely high frequency
释义
extremely high frequency
n.
(名词)
abbr.
EHF
【缩写】
A radio-frequency band with a range of 30,000 to 300,000 megahertz.
极高频:无线电频谱中30,000至300,000兆赫间的频率
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更新时间:2025/8/24 15:25:57