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| 相重的: 28 phrases in 11 subjects |
| Aviation | 1 |
| Drilling | 1 |
| Explosives and Explosive Ordnance Disposal | 4 |
| Finances | 5 |
| General | 7 |
| Mathematics | 2 |
| Metallurgy | 2 |
| Project management | 2 |
| Space | 1 |
| Sports | 1 |
| Technology | 2 |
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