False opening preventing structure for discharging door of ore discharging car
Maintenance-free collision system for ore hopper car unloading mechanism
Ocean fixed-point buoy equipment fault diagnosis method and device and electronic equipment
Land all-terrain duct cross-domain robot and cross-domain method thereof
Detachable hoisting equipment mounting frame for railway flatcar
Sound insulation pad manufacturing method and sound insulation pad
Fault detection unmanned aerial vehicle and detection method
Steel plate and steel beam transport vehicle frame and using method
Manual and automatic integrated unhooking device for railway coupler
Vehicle battery abnormal state real-time monitoring method and system and readable storage medium
Sensor for measuring real-time height of tire and measuring method thereof