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.
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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