Wireless data transmission type sea wave height measuring device and measuring method
Accurate positioning device for underwater surveying and mapping and positioning method thereof
Sea surface height measuring buoy and measuring method
Snorkeling type aquatic organism and water quality monitoring device
Special sea chart design method, application method and system suitable for unmanned surface vehicle
Underground river hydrogeological condition detection ball
Gyroscope stabilization device test platform and control method thereof
Seabed investigation equipment and method based on scientific investigation ship