Underwater repairing method for left and right suction ports of trailing suction dredger
FLEXIBLE RECOVERY DEVICE, MOTHER SHIP AND FLEXIBLE RECOVERY METHOD FOR UNMANNED UNDERWATER VEHICLE
Device and method for adjusting floating state of underwater explosion test damage model
Portable water quality longitudinal global detection device
Mooring chain steel with high environmental crack resistance and mooring chain
Mooring chain steel and production process thereof, and mooring chain and production process thereof
MOORING CHAIN STEEL AND PRODUCTION METHOD THEREFOR, AND MOORING CHAIN AND PRODUCTION METHOD THEREFOR