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person:("Li, yunlong")
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person:("Li, yanhong")
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person:("Li, yanling")
Bidirectional direct-current converter, control method thereof and bidirectional charger
Slow charging mechanical switch unlocking and opening structure and assembling method thereof
Multifunctional variable-module engine hood handle assembly and vehicle
AI parking space management system and parking space management method
Power distribution system and power distribution control device and method thereof
Vehicle high-voltage loop fault protection control method and system
Municipal engineering traffic accident emergency processing system
Intelligent collection and treatment system and method for water hyacinth in water area