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2 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 echometer
 探魚儀; 音響測深機; 迴聲探測儀

From: Webster's Revised Unabridged Dictionary (1913)

 E·chom·e·ter n.  Mus A graduated scale for measuring the duration of sounds, and determining their different, and the relation of their intervals.
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