Multifunctional marine water area environment monitoring device
Integrated surveying and mapping ship based on Internet of Things and system thereof
Buoy device for marine environment monitoring and monitoring method thereof
Portable device for retracting and releasing underwater measuring instrument
Pressure test method for PV valve of cargo hold of chemical tanker
Eccentric semi-submersible buoy type shore temperature automatic measuring and reporting device
Laying method and laying device for underwater inductive coupling transmission equipment
Movable tandem type floating liquid cargo lightering maritime work platform and lightering method
Device and method for observing track type ocean real-time profile based on anchor chain
Survey vessel for detecting sludge and method for detecting sludge by using survey vessel
Transverse wave period prediction system, method, and program
Anchor chain inclination angle real-time acoustic detection system
Water gauge measuring method and device, unmanned ship and storage medium