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| rule network | |||
| 规则 网络: 14 phrases in 8 subjects |
| Computer networks | 3 |
| Cryptography | 1 |
| Electronics | 2 |
| Geophysics | 1 |
| Librarianship | 1 |
| Project management | 1 |
| Space | 3 |
| Technology | 2 |
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