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Intelligent parking lot management system based on RFID (radio frequency identification devices)
Hybrid thermophotovoltaic power driving system for electric vehicle
Positioning structure piece for connecting car glass and car body accessory
Truss type maritime work platform spud leg aerial work platform
Dynamic allocation tool of air route resources and realization method thereof
Novel worm gear and worm transmission handle and using method thereof
DP3 ultra-deep water well drilling equipment power distribution system
Air traffic control automatic transfer system and method based on petri network
Method and device for calculating driving range of electric car based on information fusion