Inflatable boat with split type quick-release air supply equipment
High-altitude fire extinguishing flying robot, control system and control method
Flying robot for hedge cutting, control system and control method
Flexibly-deformable trailing edge variable camber wing rib
Flexibly-deformable trailing edge variable camber wing
Flexible marshalling train sorting calculation method and device
Fire-fighting equipment with overhead inflatable lifesaving mechanism
Elevator operation control method, elevator control system, controller and medium
Eccentric loading resistant jack hydraulic oil cylinder
Easy-to-adjust life jacket with detachable buoyancy device
Easy-to-adjust life jacket with bottom leg fixing device