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Half-moon-shaped deceleration strip for road
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Triangular speed bump for roads
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Automatically-repaired automobile bumper
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Device for helping earth in cooling down by utilizing thunderbolt to vaporize seawater
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Method for generating electricity by using thunderbolt to melt salt
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Electricity storage field of lightning conductor
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Earthquakeproof and risk-avoiding chest
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High-voltage microwave electric shock device
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Method for predicting earthquake by measuring earth charge change by virtue of measuring instrument
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Bed capable of being hidden on wall body
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Vacuum power motor car device
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Missile with vacuum shells
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