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| original concentration | |||
| 原浓度: 18 phrases in 9 subjects |
| Agriculture | 1 |
| Aviation | 2 |
| Chemistry | 3 |
| Ecology | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 1 |
| Metallurgy | 3 |
| Space | 2 |
| Technology | 4 |
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