Auxiliary device for landing of helicopter on uneven ground
Bionic flexible fin ray based on tensegrity structure and design method thereof
Buoy device with photovoltaic self-adjustment function
Cable laying ship cable laying speed control method and system based on water depth measurement
Communication buoy based on underwater magnetic induction communication function
Communication buoy based on underwater topographic surveying and mapping
Intelligent marine survey system and sampling method thereof
Maritime emergency communication buoy for retrieving marine survey equipment
Overwater distance surveying instrument for surveying and mapping based on Beidou system