Retractable strong wind vibration reduction mooring rod for fixing helicopter rotor
Transportation device and transportation method for large-size rock mass sample test
Fiber sling device for radar scattering cross section test
Bend self-adaptive water jet steel rail grinding system and operation method thereof
Carbon dioxide heat pump air conditioner control method and system
Vehicle endurance mileage estimation method and system, storage medium and equipment
Steel rail real-time defect detection method based on lightweight cascade network
Mounting and adjusting device for horizontal steering gear of full-load passenger car