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Spiral centrifugal boring dredger
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Camera fishing device as well as special jet fishing hook and fishing clip thereof
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Anti-theft thief catching lock
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Detachable submarine and novel equipment and technology thereof
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Climbing vehicle for climbing winch dragging cable chain, special cable chain thereof and pressurized air respirator
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New high-thrust rocket
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Helicopter, weapon and equipment capable of realizing zero/zero ejection
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Ballet shoes with no stress on toe when standing on tiptoe
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Device for pulling and extruding twigs of crop stalks
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Rotary piston combustion engine without counter force having pulling and inserting type baffle
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Vacuum magnetic suspension shockproof double-layer global pipe type power generation transport airplane
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Multi-blade chain belt type bidirectional wind starting generator
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Variable compression ratio cylinder end piston pumping and plugging movable lengthening cylinder bush type firewood and steam two-in-one engine
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Pedal type thruster for swimming and diving
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Terrace type wind power hydropower station having optimum benefit-expense ratio
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