Superventilated blade that provides hydrodynamic force in a liquid at high speed
Floating garbage collection device for ocean engineering
KEYLESS ENTRY CONTROL SYSTEM AND KEYLESS ENTRY CONTROL METHOD FOR OUTBOARD ENGINE
Environment protection device capable of automatically collecting water surface pollutants
Movable oil skimmer moving with power provided by the hydrofoil operating unit
Low-carbon floating garbage intelligent recovery ship and method thereof
Lateral propulsion device for ship and ship comprising lateral propulsion device