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
Eccentric semi-submersible buoy type shore temperature automatic measuring and reporting device
Nuclear emergency snorkeling buoy radioactivity monitoring system and monitoring method
Pressure test method for PV valve of cargo hold of chemical tanker
Laying method and laying device for underwater inductive coupling transmission equipment
Portable device for retracting and releasing underwater measuring instrument
Movable tandem type floating liquid cargo lightering maritime work platform and lightering method
Survey vessel for detecting sludge and method for detecting sludge by using survey vessel
Anchor chain inclination angle real-time acoustic detection system
Water gauge measuring method and device, unmanned ship and storage medium
Self-powered sinking and floating type ocean observation platform
Sea surface height measuring buoy and measuring method