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| sluice Vertical sliding gate or valve to regulate the flow of water in a channel or lock; canal lock A chamber with gates on both ends connecting two sections of a canal or other waterway, to raise or lower the water level in each section | |||
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| sluice Vertical sliding gate or valve to regulate the flow of water in a channel or lock; canal lock A chamber with gates on both ends connecting two sections of a canal or other waterway, to raise or lower the water level in each section | |||
