Urban rail transit safety intelligent detection system based on big data
Intelligent auxiliary instrument desk touch switch circuit and switch
Crawler belt assembly walking control method and system and crawler belt type tower crane
Multi-handle integrated automobile combination switch
Automobile combination switch with steering wheel adjusting function
Rear windscreen wiper function integrated structure of automobile combination switch
Leveling support leg mechanism, engineering machinery and crawler-type tower crane
Instrument board slush molding foaming sealing structure and foaming process
Separable hoisting bucket and material transfer method for high-rise building construction
Leveling oil cylinder supporting leg assembly and engineering machinery
INFORMATION TRANSMISSION METHOD AND DEVICE, STORAGE MEDIUM AND ELECTRONIC DEVICE