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Biomass fuel manufacturing device using cotton stalks as raw materials
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Soil pH value balance monitoring method
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Self-breaking data security transmission method for preventing virus invasion
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Safety storage prevention and control system based on disaster recovery data information
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Data security transmission system for computer multi-machine system
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Industrial workshop dust removal and desulfurization equipment and use method thereof
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Air supply drying equipment for chemical production
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Efficient direct drinking treatment method for regional tap water
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