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| 1. | Literature Retrieval and Utilize |
| 文献检索利用 |
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| 2. | The Searches of Patent Literature |
| 专利文献检索 |
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| 3. | Medical Document Retrieval |
| 医学文献检索 |
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| 4. | machine literature searching |
| 计算机文献检索 |
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| 5. | literature searching of science and technology |
| 科技文献检索 |
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| 6. | Biochemical Literature Searching |
| 生物化学文献检索 |
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| 7. | document retrieval |
| 文献检索 |
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| 8. | Document Retrieval Language |
| 文献检索语言 |
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| 9. | search pattern of document |
| 文献检索标志 |
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| 10. | Social Sciences Document Retrieval |
| 社科文献检索 |
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