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Novel combined marine ranch tourism and leisure comprehensive intelligent platform system
Mining flame-proof two-way electric rubber-tyred mancar
Control surface transmission mechanism and unmanned aerial vehicle
An Underwater Installation Method of Marine Rudder System
Wing body combination joint and unmanned aerial vehicle
Traffic control identification system based on automobile electronic identifier
Offshore buoyancy air bag, manufacturing method, special chloroprene rubber adhesive and adhesive
Plant protection equipment with pest control function