Detachable moving device for surrounding rock morphology acquisition
Impact-resistant shipborne transmission system with anti-corrosion control device and method
Two-stage unfolding double-shaft tracking satellite-borne antenna gravity unloading system
Fire-fighting detection system and method for electric power system
Angle measuring device and semi-trailer transport vehicle
Automatic detection method for water quality parameters of large-area river crab aquaculture pond
Transporting and weighing system and method for materials under hook