Water quality sampling method and automatic water quality sampling device and system
VARIABLE-THICKNESS SEAL HEAD AND DESIGN METHOD THEREOF
Underwater positioning method of sonar and installation equipment
UNDERWATER CLEANING DEVICE FOR SHIP PROPELLER AND CLEANING METHOD THEREFOR
UNDERWATER CLEANING DEVICE FOR MARINE EQUIPMENT AND CLEANING CONTROL METHOD THEREFOR
Tower-spiral-shaped deep-sea pressure-resistant shell and design method thereof
Three-dimensional interactive arrangement design method for ship anchor system
Tear-resistant offshore floating type floating body array
Suspension type warning board not prone to toppling over
STIFFENED CORRUGATED EGG-SHAPED PRESSURE HULL AND MACHINING METHOD THEREFOR
SEMI-SUBMERSIBLE LIFTING AND DISASSEMBLY PLATFORM AND CONTROL METHOD THEREFOR
Semi-submersible floating foundation model test auxiliary device and use method thereof