sonarKK [ˋsonɑr] /ˈsoʊnɑɹ/發音名詞1聲納、聲納系統The submarine used sonar to locate the sunken cargo ship.潛艇利用聲納找到那艘沉沒的貨船。2回聲定位Bats navigate in total darkness using a kind of natural sonar.蝙蝠靠一種天然的回聲定位在全然的黑暗中飛行。形容詞1聲納的限定用法The sonar operator reported a faint contact to the north.聲納操作員報告北方有微弱的訊號。