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person:("Liu jinming")
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person:("Liu xinping")
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person:("Liu xianming")
Double-gear type electric power steering system for vehicle and vehicle
Dry quenching elevator safety control system and method
Dumbbell-shaped wheel circular rail transport vehicle
Overall planning and allocation method and system for urban rail transit parking area
Passenger car steering wheel safe rotation device and method
Rail transit evacuation platform capable of resisting high wind pressure
Trackless measuring trolley for suspended contact network