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Building structure with mixed function space in front of railway station
Climbing assisting system with unmanned aerial vehicle
Control method and control device of laser car lamp and laser car lamp system
Field pressure conversion device suitable for aircraft
Hoisting device and hoisting method of composite floor slab
Intelligent LNG ship-ship refueling system capable of separating actively in emergency
Lightning protection grounding method for floating type photovoltaic power generation device in lake
Motor driving device, control method, vehicle, and readable storage medium
Multi-piston driving type synthetic jet underwater propeller
Navigation antenna retracting device and inspection unmanned aerial vehicle device
Operator protecting system and overhead working truck using system
Over-temperature protection method, device and system for brake resistor
Portable crane suitable for mounting rack type equipment and operating method thereof