Aiming control device for rope projectile launching, aiming method and launching system
Non-motor vehicle accident data processing method and device, and cloud server
DEEP-SEA LOW-COST LONG-ENDURANCE COLLABORATIVE NAVIGATION AND POSITIONING SYSTEM
Deep-sea low-cost long-endurance collaborative navigation and positioning system
Automatic disassembling, assembling and maintaining device for paying-off tackle
Safety monitoring system of electrical system of passenger train and passenger train
Drifting type seawater transparency automatic measuring device and transparency measuring method
Unmanned aerial vehicle device for measuring icing thickness of power transmission line