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。

youdao

This paper describes a multi-user on-line retrieval system, which was developed and used to process library document information in people's university.

本文叙述了一个图书文献情报多用户联机检索系统。

youdao