Novel energy feedback system for hybrid energy storage of elevator
Parking space state detector with parking index analyzing function and method thereof
Railway passenger car power supply line protection device
Road segment traffic state distinguishing method based on multi-source data
Separable backrest type device for improving safety and comfort of two-wheeled vehicle
Shaft segment hoisting and anti-twisting device and shaft segment hoisting and anti-twisting system
Shaft segment hoisting anti-twisting device and shaft segment hoisting anti-twisting system
Spur dike water depth and flow velocity measuring ship in case of accident
Staged energy absorption type automobile collision energy absorption box
Steel rope tension wheel type sliding testing device of mine hoisting machine
Streamline-shaped buoy capable of preventing floating objects from being wound
Unintended car movement protection device, brake unit and control method of brake unit
Vehicle positioning and reverse vehicle searching system and method
Venturi tube and automobile fuel steam desorption system