Light-emitting module, light-emitting vehicle logo and light-emitting module manufacturing method
Unmanned aerial vehicle sampler for environment monitoring and use method thereof
Double-row-seat fire truck carriage based on Dongfeng fierce cross-country chassis
Stable ship guide rope anti-derailment structure with adjusting function
Remotely-controlled intelligent water rescue flying wing system
Small composite wing unmanned aerial vehicle power testing device and testing method thereof
Fixed-wing unmanned aerial vehicle catapult-assisted take-off device and catapult-assisted take-
Highway vehicle fee evasion abnormal behavior early warning method and system
Device and method for evaluating driving road conditions
Double-bearing and double-guide construction method for overhead line system
Four-rotor unmanned aerial vehicle for environment detection