ECHOLOT + SONAR (OCEANOGRAPHY)
-
BTINSTRUMENTS/OCEANOGRAPHY
-
UDC551.46.082%534.642.084
-
Descriptor GERECHOLOT + SONAR (OZEANOGRAPHIE)
-
Descriptor ENGECHOLOT + SONAR (OCEANOGRAPHY)
-
Descriptor FREECHOLOT + SONAR (OCÉANOGRAPHIE)
-
Variant GERSONAR (OZEANOGRAPHIE)
-
Variant ENGSONAR (OCEANOGRAPHY)
-
Variant FRESONAR (OCÉANOGRAPHIE)
-
RTECHO SOUNDING (ACOUSTICS)
-
RTACOUSTIC DETECTION + SONAR (NAVIGATION OF SHIPS)
-
RTUNDERWATER DETECTORS + UNDERWATER RADAR (MILITARY NAVAL ENGINEERING)