Road shoulder-based road traffic noise source intensity prediction method
Water injection test device for geological survey of water conservancy and hydropower engineering
Train communication network card design method and system based on TRDP
Battery charging method and system based on battery charging and replacing cabinet
HYDROGEN FUEL CELL AND AIR SUPPLY SYSTEM THEREOF, AND RAIL TRANSIT VEHICLE
Novel anti-bottom-dragging hydraulic device for wind power tower tube transportation
Gantry crane grab bucket grabbing quantity control system and control method thereof
Grounding device, bogie and rail transit locomotive vehicle
Carriage air conditioner auxiliary refrigeration system and cargo transport vehicle
Underwater anchoring positioning method for concrete anchor in deepwater area
Dual-power crane engine operation safety protection device
Tool for indoor electric hoist hoisting and using method
Escalator control method, system and equipment and storage medium
Energy recovery-based damping device and system and train
Multi-rotor unmanned aerial vehicle platform capable of being unfolded and folded