If users find it hard to define their information in advance as databases require, is there an alternative storage and retrieval system that might work well for them?

如果用户发现很难像数据库要求的那样提前定义信息，是否存在可行的存储和检索系统的替代方案呢？

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Benchmarks have been used in computer science to compare the performance of computer systems, information retrieval algorithms, databases, and many other technologies.

计算机科学中，基准测试已经用来比较计算机系统性能、检索算法信息、数据库和其他一些技术。

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Introduces the web sites and contents of patent databases well-known at home and abroad as well as the free retrieval of patent information on the Internet.

重点介绍因特网上国内外著名的专利数据库的网址、内容和专利文献的免费检索方法。

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