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hydraulic rollers River and Water Resources Glossary (Infrastructure Development Institute Japan) ; Shioga (unclass); Shionoya (unclass); Shioya (unclass) | |||
vortex | |||
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whirlpool n; swirl n; eddy n; vortex n; maelstrom n | |||
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vortices River and Water Resources Glossary (Infrastructure Development Institute Japan) |