корабельна гідроакустична станція; корабельний гідролокатор
shipborne helicopter
array sonar
dipping sonar
hull-mounted sonar
passive sonar
sonar (sound navigation and ranging)
sonar sphere
buried object scanning sonar
cylindrical array sonar
hull mounted sonar
sonar beacon
sonar transmitter
flank array sonar
surface sonar system
sonar countermeasures and deception