Automatic water quality sampling device of intelligent water affair cloud platform
Transport vehicle for transporting stainless steel tubes
Space five-rod flapping-wing aircraft based on rigid-flexible coupling
Front door glass wool groove with automatic opening and closing invisible weather screen
Intelligent irrigation system capable of being applied to agriculture
Self-adaptive follow-up traction mechanism for mooring cable of mooring unmanned aerial vehicle
Remote restart device for fully-automatic running train, train and restart method