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| 一次ＢＯＤ River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
| 第一段階の BOD (biochemical oxygen demand, だいいちだんかいのビー•オー•ディー) | |||
| first: 5 phrases in 3 subjects |
| General | 2 |
| Obsolete / dated | 1 |
| Physics | 2 |
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