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安全协议 |
Security Protocol : 25 phrases in 11 subjects |
Air defense | 2 |
Communications | 1 |
Computer networks | 3 |
Cryptography | 3 |
Electronic commerce | 3 |
Electronics | 5 |
Information technology | 2 |
Multimedia | 2 |
Project management | 2 |
Space | 1 |
United Nations | 1 |