Intelligent unmanned aerial vehicle environment detection system for transformer substation
Fiber blended fabric reinforced quartz-based composite material and preparation method thereof
Ship air conditioning device utilizing biomass energy and working method
Identification method suitable for vehicles on different roads
Hand-leaving detection device for steering wheel, steering wheel and vehicle
Anti-rust ointment supplementing device for stay cable of cable-stayed bridge
Injection type device and method for repairing and treating polluted bottom mud of rivers and lakes
Semi-submersible type anti-collision offshore charging pile
Cutting-resistant mine tire tread rubber composition, preparation method, application and tire
Ship navigation method and system suitable for large-water-level variable-amplitude long tunnel