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person:(Kai, jiang)
Vacuum pipeline train with pressure relief fire extinguishing systems
Vacuum pipeline train body structure with double-layer pressure-resistant passenger compartment
Vacuum pipeline train body structure with double-layer pressure-resistant passenger compartment
Unmanned aerial vehicle-inspection vehicle coordinated road disease detection system and method
Tool trolley for transferring and overturning mutual inductor
Test line train speed monitoring and early warning device and method
Sealing equipment compartment for vacuum pipeline train and vacuum pipeline train