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数据键 | |||
数据密钥 |
data key : 42 phrases in 14 subjects |
Agriculture | 1 |
Aviation | 1 |
Business | 1 |
Cryptography | 1 |
Electronics | 8 |
Information technology | 10 |
Librarianship | 2 |
Mathematics | 5 |
Multimedia | 1 |
Securities | 1 |
Shipbuilding | 1 |
Space | 3 |
Technology | 1 |
Telecommunications | 6 |