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分部 组合 : 17 phrases in 12 subjects |
| Advertising | 1 |
| Bridge construction | 1 |
| Business | 1 |
| Drilling | 2 |
| Economy | 2 |
| General | 2 |
| Metallurgy | 1 |
| Oil / petroleum | 2 |
| Project management | 1 |
| Securities | 1 |
| Space | 1 |
| Technology | 2 |
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