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
Auxiliary device for resetting marine hydrologic monitoring buoy
Portable device for retracting and releasing underwater measuring instrument
Pressure test method for PV valve of cargo hold of chemical tanker
Tsunami monitoring device and tsunami early warning system
Satellite communication buoy with power generation function and usage method thereof
Eccentric semi-submersible buoy type shore temperature automatic measuring and reporting device
Anchor system easy to deploy and recover for near-shore bay environment of polar region
Laying method and laying device for underwater inductive coupling transmission equipment
Movable tandem type floating liquid cargo lightering maritime work platform and lightering method
Method for constructing whale sonar monitor fixing platform based on floating body structure