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Agricultural surveying and mapping unmanned aerial vehicle with battery thermal protection function
Pesticide spraying device for agricultural unmanned aerial vehicle liquid
Rail transit vehicle body internal and external air convection device
Solar ship-based multifunctional three-body sampling ship
Photovoltaic equipment mounting device capable of automatic protection in severe weather
SUBWAY VEHICLE RETURN DEVICE MOUNTED ON RETURN VEHICLES
Linkage decoupling mechanism for unfolding solar wing under driving of motor
Passenger vehicle with track detection and inspection functions