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| 視準軸 (しぢゅんぢく) River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 視軸 (しぢく(せん)) River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
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| 視準軸 (しぢゅんぢく) River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 視軸 (しぢく(せん)) River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
