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person:("Liu, jianlin")
Ultrasonic wave and carrier wave rail breaking monitoring system
Safety protection system and method for plug-in operation of wheeled crane
Power system rotating speed control method, controller, vehicle and readable storage medium
New energy automobile charging pile with electric leakage detection function
New energy automobile charging pile based on 5G communication
Movable track connecting device without engine power pulling
Landing leg structure with variable lap joint length and wheeled crane
Hybrid power loading operation mode switching method for crane
Gearbox double-intermediate-shaft driving system and operation machine