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Photographic services, underwater
Crude oil (petroleum) transport services, pipeline
Refined petroleum transport services, pipeline
Natural gas transport services, pipeline
Mesocosms, aquatic
Underwater temperature and depth recorders
Temperature profile recorders, oceanographic
Underwater depth measuring equipment
Underwater current meters
Wave and tide recorders, underwater sited
Wave measuring or profiling equipment, marine
Water sampling equipment, deep sea
Sampling equipment, oceanographic
Deep sea hydrophones and underwater answering appliances
Data acquisition systems, electronic, oceanographic
Underwater leak detection systems for oil and gas
Acoustic releases, underwater
