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danube sluice, Danube, Sluice, High, Mountains, high mountains, südkarparten, iron gate

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danube sluice, blocking factory, overflow, enormous, power generation, austria, river, current

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danube sluice, gateway, upper water, jochen stone, germany, austria, country border, barrage

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twenty-meter-lock, lock chamber, upper gate, slovakia, gabcikovo, danube, danube side channel, transport system

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passenger ship, lock, gateway, sluice wall, floodgate, planks, glass wall, window

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