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A kind of adjustable rotating sprinkling frame of agricultural spray unmanned plane
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Self-interacting plant protection double-wing unmanned aerial vehicle based on fluid coupling
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A kind of marine unmanned plane folding landing platform of intelligent control
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A kind of energy-saving and environment-friendly metallurgy rotary hearth furnace smoke heat replacing device
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A kind of control method with sleep function medical treatment wearable device
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A kind of Improvement type enhanced smart rate controlling constant-pressure water-supplying control device and its method
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A kind of collision block bar
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A kind of bucket that can prevent pond from coming out
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A kind of Wine bottle block withdrawing device
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A kind of fast blackboard eraser
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Preparation method of nanometer silver-loaded titanic oxide photocatalyst
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Lollipop stick insertion device
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Formaldehyde processing liquid for furniture
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High-efficiency deodorizing liquid for indoor air
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Position limiting fence for parturient sow
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