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Vehicle parking-out method and system and storage medium
Speed measurement and positioning simulation system for ultra-high-speed maglev train
Movable smoke exhaust robot for fire-fighting emergency rescue
Large three-dimensional storage lifting system and method
Elevator safety circuit first fault capturing system and using method thereof
Piston device and method for reactivating ineffective piezometer tube
Erecting equipment, erecting method and method for passing through uneven surface