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Online ticketing system
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Environment-friendly recycling method for lithium-ion battery
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Resource recycling method of lithium ion batteries
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Method for performing direct electrorefining on metal crushed aggregates
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Wire flex-resistance online detection method
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Tile composed integral roof fabricated part and production method thereof
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Wireless control method of underwater moving object
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Environment-friendly roof prefabricated part with heat insulation and heat preservation functions
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Method for replacing cutter of jacking type shield tunneling machine
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Plugging method for preventing collapse in shield tunneling machine jacking process
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Method for fixing shield segment
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Quick construction method of roof cast-in-situ process
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