英语词汇“permanent echo”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	permanent echo
释义	permanent echo Electronics. a radar signal reflected to a radar station on the ground by a building or other fixed object.
随便看	perpetual adoration perpetual calendar perpetual check perpetual motion perpetuate perpetuity perphenazine Perpignan perplex perplexed perplexity per pro. per procurationem perquisite Perrault Perret Perrin Perrine perron Perronet Perrot perry Perry Perrysburg Pers

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