apparatus for detection underwater, 1946, from first letters of "sound navigation ranging," on pattern of radar.
sonar 英文释义
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
sonar 双语例句
1. We picked up two submarines on sonar.
我们用声呐系统观察到两条潜水艇.
来自《简明英汉词典》
2. Sonar is an acronym for sound navigation ranging.