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软 矿 : 32 phrases in 9 subjects |
| Chemistry | 1 |
| Earth sciences | 1 |
| Electronics | 1 |
| General | 7 |
| Hydroelectric power stations | 1 |
| Metallurgy | 6 |
| Oil / petroleum | 3 |
| Technology | 11 |
| Water resources | 1 |
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