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