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*OCEAN SURVEILLANCE
1
*SONAR
1
Acoustic Detection and Detectors
1
DEEP OCEANS
1
FRONTS(OCEANOGRAPHY)
1
LONG RANGE(DISTANCE)
1
LOW FREQUENCIES
1
MASKING
1
NARROWBAND
1
NORTH PACIFIC OCEAN
1
PARKA 1 PROJECT
PARKA(PACIFIC ACOUSTIC RANGE KANEOHE ALASKA)
1
SOUND TRANSMISSION
1
SUBMARINE DETECTION
1
UNDERSEA SURVEILLANCE
1
UNDERWATER ACOUSTICS
1
UNDERWATER SOUND SIGNALS
1
Undersea and Antisubmarine Warfare
1
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