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Retractable horizontal external sun-shading shutter device
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Bottom expanding drill bit
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Shield tunnel section structure based on urban area and intercity motor train unit clearance design
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Urban area and state railway collinear railway evacuation platform structure and evacuation method
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Goaf connectivity detection system and detection method
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EMUs wheel pair management system
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Super capacitor tramcar station
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Concrete beam, connecting assembly and manufacturing method thereof
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Concrete beam, connecting assembly and manufacturing method thereof
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Underground complex emergency dispatching command method and system under dynamic feedback mechanism
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Automatic lifting type flood monitoring device and method based on image recognition
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Graphical rail transit structured emergency plan compiling system and method
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Urban rail transit vehicle base rail support column suitable for fourth rail backflow
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Shield tunnel segment seam caulking resin material, preparation and application method
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Combined beam, spliced beam and subway station
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Maintainable tunnel drainage pressure relief system
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Transition section structure for connecting underground tunnel entrance and exit with viaduct and construction method
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Tunnel bottom lining structure with tie beam and construction method thereof
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Device for separating bogie of straddle type monorail vehicle and moving bogie of vehicle body
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