Preparation method of sterilizing and mildew-proof carriage plate and logistics vehicle carriage
Pesticide liquid spraying device for unmanned aerial vehicle
Electric vehicle power supply system capable of realizing redundancy and control method thereof
Digital voice locomotive communication system based on main bus and standby bus
Intelligent feed feeding device for fish culture and feeding method
Unmanned aerial vehicle with battery heat preservation function
Power transmission and transformation line installation moving device
Vehicle-road cooperation system based on video structuring technology