Construction method for hidden half-wall and half-arch protection structure of exposed arch of shallow-buried bias tunnel penetrating through accumulation body
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Granite sandstone processing and classifying system
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Reverse construction method for large-span prestressed cast-in-place bridge
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Deep basal pit side wall steel mould platform truck draw gear
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Adjusting device for air supply of two working faces
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System and method for treating wastewater after processing of medium-sized artificial sandstone
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Underwater dredging system and method for hydropower station tail canal
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Soil-fixing and water-retaining construction method for ecological slope protection of concrete faced rockfill dam
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Basalt stratum underwater concrete pouring system and construction method
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Method for entering arch into hole by using bias tunnel arch sleeve
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Shield tail wrapping and escaping construction method of shield tunneling machine for tunnel construction
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Breakdown-preventing material receiving buffer frame device for conveying belt of adhesive tape machine
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Convenient preformed hole forming template
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Whole quick construction template in highway escape canal, cable pit
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Tunnel concrete maintenance platform truck
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Floating type underwater air-lift sand pumping device
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Method for detecting quantity and area of bubbles on surface of precast concrete T beam
