Geography surveying and mapping device convenient to move and using method thereof
Taraxacum-seed-imitated plant leaf temperature and humidity detection device
Underwater measurement lifting platform vertically installed at ship bottom
Underwater target detection equipment and method and buoyant raft
Marine environment online monitoring and early warning system
Scanner calibration method, device and system and crane
Mobile highway technical condition detection equipment
Ship-based unmanned aerial vehicle sensor automatic calibration method and unmanned aerial vehicle
Free falling body type marine organism optical profile measurement system and method