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| in the air | |||
| 传 布的: 18 phrases in 10 subjects |
| Agriculture | 1 |
| Animal husbandry | 1 |
| General | 7 |
| Genetics | 1 |
| Mathematics | 2 |
| Metallurgy | 1 |
| Project management | 1 |
| Technology | 1 |
| Textile industry | 2 |
| United Nations | 1 |
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