Electromagnetic lock structure and electromagnetic lock system
Copper coil loading machine and loading and unloading method
Transfer device and mounting equipment comprising same
Method and apparatus for distributed scene engine of vehicle
Lifting device for new energy automobile chassis repair
Method and Apparatus for Recommending a Charging Station
Electric tractor for pipeline transportation in comprehensive pipe gallery and using method thereof
Intelligent LNG ship-ship refueling system capable of separating actively in emergency
Hidden step and electric overhead working truck applying same
Method and system for obtaining trajectory pattern of route
GENERATING A QUERY INDEX AND QUERYING ON THE BASIS OF THE QUERY INDEX
Generating a query index and querying on the basis of the query index