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person:("chen xiao")
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person:("chen jian")
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person:("chen miao")
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person:("chen qiao")
Earthquake emergency unmanned aerial vehicle path optimization device
Three-dimensional live-action digital map measuring equipment
In-station marshalling departure method for group trains
Energy recovery hierarchical control method and system for pure electric heavy commercial vehicle
Ecological environment monitoring system and device based on VR technology
Heavy haul railway virtual marshalling radio block center switching method, equipment and medium
Unattended station interval occupation logic inspection system and use method