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| 土の構造 (つちのこうぞう) River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 土壌の構造 River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 土壌構造 (どじょう・こうぞう) River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 骨格構造 (こっかく・こうぞう) River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
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soil structure : 1 phrase in 1 subject |
| Technology | 1 |