Urban traffic speed estimation method based on multi-source crowd sensing data
Hoisting device for fabricated building components and parts
Vehicle power battery system, vehicle chassis and vehicle
Unmanned aerial vehicle bomb carrying and aerial launching device
Connector, cantilever device and manufacturing process
Mounting seat of integral cantilever and mounting structure of integral cantilever
Train positioning method and device, electronic equipment and storage medium
Highway data processing method, device, equipment and computer program product
Integrated foaming automobile seat cover and forming method thereof