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溶液精 : 20 phrases in 9 subjects |
| Architecture | 2 |
| Chemistry | 3 |
| Construction | 1 |
| General | 3 |
| Metallurgy | 2 |
| Oil / petroleum | 2 |
| Refrigeration | 1 |
| Reproductive biology | 1 |
| Technology | 5 |
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