sonar
英['s??nɑ?]
美['sonɑr]
- n. 聲納；聲波定位儀（等于asdic）
- n. (Sonar)人名；(土)索納爾
英英釋意
- 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 anti-submarine detection investig