on-line retrieval [计] [图情] 联机检索
off-line retrieval [计] 脱机检索 ; 离线检索
document on-line retrieval system 线上文件检索系统 ; 在线文件检索系统
on-line retrieval system 线上检索系统 ; 联机检索系统
on line retrieval 联机检索
on-line retrieval tool 网络信息检索工具
on line retrieval system 联机检索系统
Methods for on-line retrieval and consulting of chemical information from Internet were summarized, meanwhile some outstanding chemical web sites are listed.
简要概括了互联网上化工信息检索和查询的方法，并列举了一些优秀的化工网站。
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。
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