Anti-slip and wear resistance performance of three novel coatings as surface course of airstrip
Automatic emergency help-seeking equipment and help-seeking method for elevator
Charging pile device with shared parking lock function
Display control method for instrument screen, processor, vehicle and storage medium
Lifting variable magnification structure of tower crane
Vehicle-mounted storable holographic projector for car
Elevator anti-pinch and elevator anti-collision safety prompting equipment
Automatic power generation child scooter with DISCO flashing ball
POWER SOURCE SWITCHING SYSTEM, POWER SUPPLY CIRCUIT SWITCHING METHOD, AND ELECTRIC VEHICLE
Hoisting method for overhead line system pole erecting operation vehicle
Hybrid mixer truck aftertreatment heat management method and device, hybrid mixer truck and medium
Auxiliary device for detecting leakage of crane pipeline