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| 摩擦層 (まさつそう) River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
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friction layer : 1 phrases, 1 sujets |
| Physique | 1 |
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| 摩擦層 (まさつそう) River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
|
friction layer : 1 phrases, 1 sujets |
| Physique | 1 |