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单词 huff-duff
释义 huff-duff|ˈhʌfdʌf|
[Representing the pronunc. as a word of the initials h. f. d. f., for high-frequency direction-finder.]
A device for determining the direction of incoming high-frequency radio signals, enabling their source to be located when bearings are obtained by two or more such devices.
1946N.Y. Herald-Tribune 16 Jan. 22/1 ‘Huff duff’, with a range that makes it possible to detect and plot radio signals of as little as fifteen seconds' duration emitted halfway around the globe from plotting stations.1955C. S. Forester Good Shepherd ii. 39 Huff-Duff reports foreign transmission.1962L. Farago Tenth Fleet viii. 162 They used decoy subs to befuddle the Huffduff.
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更新时间:2024/11/10 7:04:10