| |||
information access | |||
information storage and retrieval |
信息存取 : 32 phrases in 12 subjects |
Air defense | 1 |
Automobiles | 1 |
Aviation | 6 |
Commerce | 1 |
Computers | 1 |
Earth sciences | 1 |
Economy | 1 |
Electronics | 3 |
Librarianship | 2 |
Space | 3 |
Technology | 6 |
Telecommunications | 6 |