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1)  heterogeneous digital documentation
异构数字文献
1.
The heterogeneous digital documentation unification retrieval system is one of the important technology platform development tasks of our country s digital library.
异构数字文献统一检索系统是我国数字图书馆技术平台开发的重要任务之一,本文研究探讨基于Web模拟过程体系模型,建立异构数字文献统一检索系统,实现资源的跨库检索、统一显示和文献的二次检索等功能。
2)  digital literature
数字文献
1.
This paper expounds the new requirements of the development of information technology for literature resources construction, analyzes the shortages of digital literature resource and traditional literature resource, and advances some suggestions on doing well the construction of literature resources collection system in university library.
阐述了信息技术发展对文献资源建设的新要求,分析了数字文献资源与传统文献资源的优势及不足,提出了搞好高校图书馆文献资源收藏体系建设的建议。
2.
This paper analyzes on the influence of the management mode and service mode adopted by our country s digital library on readers obtaining the literature information,and probes into how to increase the utilization ratio of digital literature information.
分析了我国数字图书馆所采用的读者用户管理模式和服务模式对读者获取文献信息的影响,对如何提高数字文献信息的利用率进行了探讨。
3.
This paper analyzed the situation of using digital literature in academic library,come to conclusion of pessimistic for utilization of digital literature in academic library by sampled investigation for reader of some academic libraries.
通过对高校图书馆数字文献资源整体状况的分析,以及对部分高校图书馆的读者抽样调查和采访,得出目前高校图书馆数字文献利用率不容乐观的结论,并提出改变现状的探索性对策。
3)  digital document
数字文献
1.
The Comparative Research Between the Tapping and Utilization of Digital Document and Print Document;
数字文献与纸质文献开发利用的比较研究
2.
This paper starts from digital document preservation in library,discusses the features of digital document and puts forward some countermeasures according to the problems we met in the preservation work.
本文从图书馆数字文献保存的意义入手,探讨了数字文献资源的特点,并结合图书馆网络信息保存面临的挑战提出网络信息资源存储的对策。
4)  digital documents
数字文献
1.
Reconsideration about several questions of digital documents;
数字文献若干问题的再思考
2.
From the angle of the education role and service function of library,the paper discusses the mutual advantage complement of paper media and digital documents.
从图书馆的教育功能和服务职能看纸质文献和数字文献的优势互补。
3.
Stand on the researches about the long-term preservation of digital documents in recent years,this paper researched the problems about long-term preservation of digital documents;Technology is not the only decisive factors on the adoption of long-term preservation of digital documents,make a effective strategies and make a discuss about non-technical factors and their role.
通过对近年来有关数字文献长期保存的论文及相关资料的分析,论述了数字文献长期保存的问题,技术并不是此过程中唯一起决定作用的因素,通过简述数字文献长期保存的有效策略论述了在此过程中的非技术因素及其作用。
5)  document digitization
文献数字化
6)  digital documents
数字化文献
补充资料:顺-反式异构体(cistrans isomer),1,2,4异构体
分子式:
CAS号:

性质:又称顺-反式异构体(cistrans isomer),1,2,4异构体或1,2,6异构体(1,2,4 isomer;1,2,6 isomer)。八面体配位化合物中,六个配体分别为3个A(如图中Cl:A1,A2,A3)和3个B(如图中Py:B1,B2,B3)(图暂缺)。当三个相同的配体中的两个(如A1与A3或B1与B3)互为反式,第三个(如A2或B2)与这两个A1与A3或B1与B3)均为顺式,这样的排布的异构体即为经式异构体。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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