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保密数据 : 29 phrases in 14 subjects |
| Air defense | 3 |
| Aviation | 4 |
| Corporate governance | 1 |
| Drilling | 1 |
| Electronics | 10 |
| Fishery fishing industry | 1 |
| Information technology | 1 |
| Mathematics | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Project management | 1 |
| Space | 2 |
| Technology | 1 |
| Telecommunications | 1 |
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