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Wheel-rail structure suspension type PRT elastic turnout rail turnout structure and switching method
Multi-rotor unmanned aerial vehicle for surveying and mapping geographic information
Automatic folding and unfolding method of vehicle supporting mechanism
Road traffic accident black spot discrimination method based on space-time combination dimension
New energy automobile charging berth intelligent management and control system and method
Method for preventing driving accidents of old people and vehicle
Insulated pole-climbing-free self-propelled grounding device