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| 階級値 River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
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class value : 4 phrases, 1 sujets |
| Général | 4 |
| |||
| 階級値 River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
|
class value : 4 phrases, 1 sujets |
| Général | 4 |