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| 栗石 (ぐり・いし) River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 大砂利 River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 大礫 River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 礫 (れき) River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 玉石 (tama-ishi) Concrete Terminology Glossary (Gururaj Rao) | |||
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| 丸石 (まる・いし); 円石 | |||
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