Ship-based fixed mobile acoustic investigation device for monitoring aquatic organisms
Hull motion measurement method and hull characteristic rule detection system using same
Wireless data transmission type sea wave height measuring device and measuring method
Accurate positioning device for underwater surveying and mapping and positioning method thereof
Unilateral anchor buoy and method for water body profile observation
Water surface power buoy for assisting underwater detection
Self-powered sinking and floating type ocean observation platform
Portable marine observation device matched with broad-shore ocean current meter
Buoy for monitoring silting state of river bottom sludge