Robust adaptive factor graph intelligent iron shoe navigation system and algorithm
Method for discharging materials in LNG (Liquefied Natural Gas) cabin of dual-fuel container ship
Bottom support hydraulic type liftable water spraying propelling device and using method thereof
Nozzle submerging type water-jet propeller capable of backing up and working method thereof
Novel water-jet propulsion pump device structure and operation method thereof
Water cooler for cooling motor of water-jet propulsion device and working process thereof