Small buoy and cooperative action implementation method thereof
Ship abutting berthing device and berthing method thereof
Maritime emergency communication buoy for retrieving marine survey equipment
Buoy device with photovoltaic self-adjustment function
Underwater terrain detection device and detection method
Underwater detection device based on multi-beam sonar and offshore ad hoc network buoy
Bionic flexible fin ray based on tensegrity structure and design method thereof
Auxiliary device for landing of helicopter on uneven ground
Overwater distance surveying instrument for surveying and mapping based on Beidou system
Sonar surveying and mapping system based on surf algorithm