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sonar 音標拼音: [s'onɑr] n. 聲納 聲納 sonar 聲納 sonar n 1: a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return; "sonar is an acronym for sound navigation ranging"; "asdic is an acronym for antisubmarine detection investigation committee" [synonym: {sonar}, {echo sounder}, {asdic}] 30 Moby Thesaurus words for "sonar":
astronavigation, bathometry, bathymetry, celestial navigation, chronometer, coastwise navigation, consolan, dead reckoning, depth sounding, echo sounding, echolocation, fathomage, fathoming, fix, line of position, loran, oceanography, pilotage, plane sailing, point-to-point navigation, radar, radio beacon, radio navigation, sextant, shoran, sofar, sounding, soundings, tables, water |
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