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data retrieval | |||
information retrieval | |||
document retrieval |
资料检索 : 28 phrases in 13 subjects |
Air defense | 1 |
Aviation | 3 |
Business | 1 |
Construction | 1 |
Earth sciences | 8 |
Engineering geology | 2 |
General | 2 |
Information technology | 1 |
Librarianship | 1 |
Name of organization | 1 |
Space | 1 |
Technology | 5 |
United Nations | 1 |