Hydropower station anti-flooding underwater rescue capsule
Spherical rescue capsule with double transition cabins
Armrest device for auxiliary instrument panel of vehicle
Common direct current bus escalator control system and control method thereof
Escalator chain elongation detection method, system and device
Escalator maintenance detection system, method and device and storage medium
Security check system for synchronously distributing passengers and articles
Adjustable proportional valve device based on switch electromagnetic valve and brake control method
Module-adjustable vehicle-mounted magic box and pickup truck
Urban road intersection traffic information acquisition system based on image recognition technology
Amphibious spiral driving multifunctional operation platform based on unmanned/manned control
Electric locomotive bogie bearing state maintenance system and method
Bridge steel box girder hoisting equipment and construction method thereof