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还 原 性 : 42 phrases in 10 subjects |
| Chemistry | 1 |
| Computers | 1 |
| Energy industry | 2 |
| Food industry | 1 |
| General | 8 |
| International Monetary Fund | 2 |
| Medical | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Technology | 24 |
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