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person:("zhang chengwei")
Automobile anti-sideslip deceleration component force system
Preparation method of battery module aerogel buffer heat insulation pad
Negative pressure type elevator with disinfection function
Device for killing dangerous microorganisms of 1nm-500nm for bus
Public transport vehicle capable of early warning and preventing dangerous microorganism diffusion
Hanging point structure of airstairs on side of seaplane body
Emergency lane online opening decision-making method, system and device and storage medium