variable-depth sonarとは意味:variable-depth sonar 可変深度音波探知機[基礎]; 可変深度ソーナ[電情] variable-depth sonar meaning:[Electronics] A sonar device that can be placed far below the surface, for the purpose of detecting objects or terrain at greater depths than would be possible with a surface-located sonar device. variable-depth sonar перевод:гидролокационная станция [гидролокатор] с переменной глубиной погружения