英语词汇“acoustical surveillance”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	acoustical surveillance
释义	WordReference Random House Unabridged Dictionary of American English © 2024 acous′tical surveil′lance, Militarythe collecting or recording of information by sound-detection methods and devices, as for intelligence purposes.
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