Elevator debugging method based on intelligent mobile phone
Stress absorption device based on flange-free waveguide and assembly method
Connecting structure of satellite cabin-penetrating waveguide
Photovoltaic floating body used in wave-resistant water environment and installation method
Rocket second sublevel capable of releasing satellite and working method
Device for improving installation precision of large-scale cross-cabin waveguide
Regional traffic state early warning system based on real-value rough set model
Ventilation device for electric power material storage
Material conveying equipment for road slope construction
Algorithm for calculating estimated arrival time of vehicle based on bus GPS
Traffic jam analysis system based on urban public transportation network perception