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Encryption : 256 phrases in 17 subjects |
Agriculture | 2 |
Air defense | 3 |
Aviation | 5 |
China | 1 |
Communications | 1 |
Computer networks | 13 |
Cryptography | 105 |
Electronics | 15 |
Exhibitions | 1 |
Information technology | 36 |
Librarianship | 5 |
Multimedia | 6 |
Oil / petroleum | 1 |
Project management | 11 |
Space | 28 |
Technology | 12 |
Telecommunications | 11 |