Based on library ' s requirement of integrating some distributed , heterogeneous database systems to provide a unified interface to his users , a distributed , heterogeneous databases retrieving system based on mobile agent technology is provided 基于图书馆集成多个分布的、异构的数据库，对外提供统一的检索服务的需求，设计了一个基于移动代理的分布式异构数据库检索系统。
Though they provide network information services , they differ greatly from one another . the nacsis model falls short of predominance in services efficiency since it is not purely commercial and is subsidized by the government 以dialog为代表的商业机构的中介服务型模式，这种模式以市场化的手段，向用户提供有偿的联机检索服务、定题跟踪服务、电子文献传递服务等。
The institutional repository that based on open access , preserves one institution ’ s academic output and provides the literature ’ s access and retrieval service , and it will be the supplement of the traditionally academic exchange system 基于开放获取理念的机构知识库是保存自我机构内的学术产出成果,为专属机构提供文献获取与检索服务,是对传统的以正式出版物为主的学术交流体系的补充。
The center for chinese studies reading room is located on the 6th floor of the national central library . staff is on hand to answer reader questions and computers are available to conduct on - line searches . there are also two copiers available for use . 4 国家图书馆六楼设置汉学研究中心资料室，提供读者阅览及图书资料借阅、一般参考谘询及资讯检索服务等；室内亦设有两台影印机，供资料影印之用。
Each module includes several submodules . the major functions of anpspis include querying and indexing information and maps , providing the pollution situation and dynamic change of anpsp , and putting forward to control measures 系统主要实现：用于发布相关农业面源污染的资料、信息、地图及提供查询检索服务；提供农业面源污染的现状与分布情况；建立农业面源污染的决策咨询系统，并提出相应的控制对策和解决方案。
With the instauration of digital libraries , a lot of electronic literature resource purchased , special databases and subject navigation systems self - constituted are provided . these resources provide influence literature deposits and retrieve services 随着各个高校数字图书馆的逐步建成，在图书馆的主页上提供了大量外购的电子文献资源、自建的各种特色数据库、各种学科的导航库等等，向读者提供丰富的文献存储和检索服务。
This article describes practices in university of oklahoma libraries in usa , and comparing with situation in libraries in china to explain that cataloguers should apply traditional and modern cataloguing technologies to improve quality of online catalogues 摘要本文描述了美国俄克拉荷马大学图书馆编目部门的实践活动，对照国内图书馆的情形，阐明了在网络环境下，编目人员如何利用传统和现代编目技术提升在线目录质量，从而为读者提供更加优质的检索服务。
With the rapid development of internet technology and then the surpassing increase of all kinds of information characterized by geometric progression , the intellectualized information retrieval has become a major research topic , for the traditional information retrieval ca n ' t meet the requirements of users 随着因特网技术的迅速发展，因特网上信息成几何级数增长，传统的信息检索服务已不能满足用户的检索需求，因此智能信息检索成为重要的研究课题。
Through the internet or the workstations at the resource centre . moreover , internet links and electronic databases such as , " wisenews " and " film index international " are also available in the resource centre to facilitate effective searching for more film - related information resources 此外，资源中心内还提供互联网及其他电子资源如：慧科新闻资料库( wisenews )及filmindexinternational线上电影资料库的检索服务，以方便公众人士更有效去搜寻电影相关资料。
Through the internet or the workstations at the resource centre . moreover , internet links and electronic databases such as , " wisenews " and " film index international " are also available in the resource centre to facilitate effective searching for more film - related information resources 此外，资源中心内还提供互联网及其他电子资源如：慧科新闻资料库wisenews及film index international线上电影资料库的检索服务，以方便公众人士更有效去搜寻电影相关资料。
