文中以同济情报检索网络系统（TJIRNS）为例，论述了典型环境中联机扩展功能及其实现过程。

Through the example of Tongji Information Retrieval Network System (TJIRNS), the paper mainly describes on-line expansion function and its implementation under the specific conditions.

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数据仓库是企业决策支持系统(DSS)和联机分析处理(OLAP)的数据环境。

Data warehouse provides a good data environment for Decision Support System (DSS) and On-Line Analytical Processing (OLAP).

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最后，本文把联合仿真技术引入并联机器人的精度分析领域，结合控制系统，在仿真环境下对并联机器人运行精度进行分析，并提出了改进措施。

At the end of this paper, co-simulation method was introduced to the area of parallel robot accuracy analysis, and come up with ways to improve the running accuracy of parallel robot.

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最后，本文把联合仿真技术引入并联机器人的精度分析领域，结合控制系统，在仿真环境下对并联机器人运行精度进行分析，并提出了改进措施。

At the end of this paper, co-simulation method was introduced to the area of parallel robot accuracy analysis, and come up with ways to improve the running accuracy of parallel robot.

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