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retrieval systems: 36 phrases in 14 subjects |
Agriculture | 1 |
Aviation | 1 |
Communications | 1 |
Data processing | 1 |
Forestry | 2 |
General | 2 |
Information technology | 8 |
Law | 3 |
Materials science | 1 |
Medical appliances | 6 |
Natural sciences | 1 |
Social science | 1 |
Transport | 1 |
Work flow | 7 |