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| 半 浓度: 36 phrases in 14 subjects |
| Agriculture | 2 |
| Animal husbandry | 1 |
| Aviation | 1 |
| Drilling | 1 |
| Ecology | 5 |
| Electronics | 1 |
| Environment | 2 |
| General | 2 |
| Genetics | 1 |
| Hydroelectric power stations | 2 |
| Life sciences | 2 |
| Oil / petroleum | 1 |
| Technology | 14 |
| Water resources | 1 |
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