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监督 区 : 12 phrases in 10 subjects |
| Communications | 1 |
| Consulting | 1 |
| Drilling | 1 |
| Electronics | 2 |
| General | 1 |
| Hydroelectric power stations | 1 |
| International trade | 1 |
| Oil / petroleum | 1 |
| Rail transport | 1 |
| Technology | 2 |
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