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| data subject | |||
| 数据标的: 25 phrases in 14 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Drilling | 1 |
| Earth sciences | 2 |
| Electronics | 2 |
| General | 1 |
| Information technology | 3 |
| Librarianship | 2 |
| Logistics | 1 |
| Patents | 1 |
| Project management | 6 |
| Technology | 1 |
| Telecommunications | 2 |
| United Nations | 1 |
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