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Big three-blade wind turbine floating raft
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Equipment for reducing airport fog bound
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Huge pipe quick joint
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Grooved pulley sliding cable device
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Opening and closing type strop device
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Safety strop for building in fire
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Balcony fence avoiding disaster
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Children emergency passageway
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Water discharge method using airplane for barrier lake
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Drainage barrier lake
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Method for siphoning barrier lake
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Integration wing power generation kite
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Combination type brook side hydroelectric power
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Branch-along hydroelectricity
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Multi-megawatt generation kite
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High altitude wing wind power generation
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Frost prevention fan easy to store
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Desk fan refitting anti-frosting fan
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Spring tea antifrosting fan made by oneself
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Transmission tower and wind power tower bracket
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