Hub cover with display function and display control system thereof
Three-rotor-wing aerial photography unmanned aerial vehicle
Large-lifting-force winch for window cleaning machine
Fuel tank cover intelligent control system based on pressure sensor
Shielding device of sliding plug door air duct, sliding plug door and vehicle
Vehicle axle load measuring device and measuring method
Automatic curling and self-walking track carrier for large tent
Protection method and device for lane change of adjacent lanes
Vehicle charging management method and system based on sensor technology
Test tool and method and device for detecting vehicle road sign recognition function thereof
Caterpillar band traveling mechanism and tracked vehicle with same
PARKING MANAGEMENT METHOD, SERVER, PARKING SPOT LOCK AND STORAGE MEDIUM