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| 人造骨材 River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 人工骨材 (ぢんこう・こつざい) River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
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| 人工骨材 (ぢんこう・こつざい) | |||
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artificial aggregate : 5 a las frases, 2 temas |
| General | 3 |
| Tecnología | 2 |