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River hydroelectric power transportation system
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Centrifugal sprayer
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Centrifugal tube pump
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Working wheel of fan
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Device for propeller tractive axial force measuring
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Centrifugal aerator
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Device for movement of load over water surface
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Floating hydroelectric power station
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Apparatus for moving loads under water surface
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Sail rigging
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Hydraulic device for cargo transportation under the interfluve conditions
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Reversible pump
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Locking device
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Centrifugal-axil water ejector
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Testing tank
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Method of making worm-type impeller
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Holder for sharpening the blades of tools
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Device for moving load over water surface
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Waterway hydroelectric unit
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Ship wind propeller
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