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溶管 : 17 phrases in 11 subjects |
| Business | 1 |
| Chemistry | 2 |
| Desert science | 1 |
| General | 2 |
| Metallurgy | 3 |
| Nursing | 1 |
| Oil / petroleum | 1 |
| Refrigeration | 1 |
| Sports | 1 |
| Technology | 3 |
| Winemaking | 1 |
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