UNDERWATER CLEANING DEVICE FOR MARINE EQUIPMENT AND CLEANING CONTROL METHOD THEREFOR
DEVICE FOR BUOYANCY ADJUSTMENTS UNDER MULTIPLE WORKING CONDITIONS, AND ADJUSTMENT METHOD
PRESSURE-RESISTANT HULL FOR SUBMERSIBLE AND DESIGN METHOD THEREFOR
PILE-DRIVING BARGE, AND POSTURE ADJUSTMENT, POSITIONING CONTROL AND PILE-DRIVING METHODS THEREFOR
Amplitude and phase adjustable underwater flapping wing gliding device and adjusting method thereof