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金属比 : 24 phrases in 11 subjects |
| Chemistry | 1 |
| Commerce | 1 |
| Dentistry | 2 |
| Electronics | 2 |
| General | 6 |
| International trade | 1 |
| Metallurgy | 6 |
| Sports | 1 |
| Technology | 2 |
| Water resources | 1 |
| Welding | 1 |
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