noun🔗Share음향 측심기A sonar device used for echo sounding"The fishing boat used its echosounder to locate a school of fish deep below the surface. "어선은 수면 아래 깊은 곳에 있는 물고기 떼를 찾기 위해 음향 측심기를 사용했다.technologynauticaldevicesoundoceanelectronicsmachineChat with AIVocabulary GamePractice Reading