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CN112127625A
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Penetrating type continuous support for building concrete floor and using method thereof
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Vacuum glass panel, clamp for manufacturing vacuum glass panel and manufacturing method
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A kind of plant nutrient that nutrition is high soil
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A kind of soft plant nutrient soil
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A kind of potting Nutrition Soil
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A kind of ventilative plant nutrient soil
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A kind of unmanned plane buffer unit
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A kind of Novel crutch
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A kind of safety door opening and closing lock system
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Cotton seed delinter
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Vertical axis aerogenerator
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Real-time pitch-adjusting wind wheel and vertical axis aerogenerator
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The chamber structure and cycloid rotor engine of cycloid rotor engine
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A kind of education and instruction finger tellurion
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A kind of multifunction teaching instrument
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A kind of student's Table top
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A kind of education and instruction capable of preventing hand from injury chalk sleeve
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A kind of blackboard suitable for education and instruction
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A kind of Graphic Panel for being conveniently replaceable and rotating
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A kind of novel blackboard eraser cleaning plant
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