Emergency escape evacuation ramp device of urban rail transit vehicle
Protective structure of exhaust branch pipe below automobile chassis
Portable and movable hoisting equipment for well drilling
Hybrid power driving system with bidirectional power interruption mechanism
Intelligent ocean lifesaving power supply positioning system and method
Mining machinery supporting device with height convenient to adjust
Driving distraction recognition and real-time reminding method based on multiple dimensions
Electric winch with rope breakage protection function
Vehicle door mobile phone wireless charging system, control method thereof and vehicle
Anti-collision stabilizing device for ship body berthing
Jitter elimination method suitable for electric vehicle
Segmented construction process for superstructure of ship body