Camera and door lock linkage control system and method
Airtight fabric based on modified styrene thermoplastic elastomer and preparation method thereof
Three-folding belt type pontoon bridge with self-propulsion function
Working trolley, tamping wagon and working trolley acceleration and deceleration control method
Polypropylene composition as well as preparation method and application thereof
Dynamic telescopic device for filling gaps and platform door system
Nested wall attaching device for integrated platform construction elevator
Slope drainage method using horizontal directional drilling
Ice and snow removing device and ice and snow removing vehicle
Ice melting method, device and system for contact rail
Steel wire rope locking device and tower assembling construction device and method
Informatization calculation, cutting and hoisting method for foundation pit supporting beam
Electric vehicle charging port protection structure and charging port cover automatic closing method
Encircling crawling robot and method for highway bridge underwater pier column detection
Movable mechanical helicopter take-off and landing system
Full-automatic cleaning device for vehicles entering and exiting from construction site
Slope displacement monitoring device in pile foundation excavation process
Electromagnetic rotation limiting device and tower assembling construction device and method
Intelligent trolley for detecting quality of ballastless track limiting groove
Forestry pest and disease monitoring unmanned aerial vehicle
Warp-knitted rolled gray fabric roll unloading device
Multifunctional integrated service method based on parking lot
Automatic induction adjustment lifting height limiting frame
Fabricated building automatic assembly production line system
Forming process of fireproof door leaf with escape channel