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| 一等 River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
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| 一次 (いちぢ) | |||
| English thesaurus | |||
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| FO (Alex Lilo) | |||
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first-order : 31 phrases in 5 subjects |
| Automatic control | 1 |
| General | 19 |
| International Monetary Fund | 1 |
| Physics | 6 |
| Technology | 4 |