作者在论文当中，着重叙述了此框架中如何构造系统的XML元数据，和如何基于XML实现异构数据库系统的数据转换和数据的透明访问这两个问题。
We narrates how to construct the systematic XML meta-data and realize the heterogeneous database's data convertion and transparent visiting in this thesis.
通过实践着重研究和验证了如何构造系统的XM L元数据，以及如何实现基于XML的异构数据库的数据转换和数据透明访问等一系列问题。
Through actual application, a series of problems are researched and proved which include how to construct the systematic XML meta-data and realize the heterogeneous dat...
CORBA提供了在异构平台上构造对程序开发人员透明的分布式环境，而WWW为用户提供了友好、方便的使用界面。
CORBA provides an environment for building clients and servers, which are transparent to programmers while WWW presents people with friendly and convenient user interface.
在前人研究成果基础上，对龙门山冲断带差异构造变形特征，构造几何样式，构造演化等几个方面进行了综述。
Reviewing the achievements in the Longmen Mountain thrust belt, especially the differential structural deformation, the geometrical styles of deformation and structural evolution.
在前人研究成果基础上，对龙门山冲断带差异构造变形特征，构造几何样式，构造演化等几个方面进行了综述。
Reviewing the achievements in the Longmen Mountain thrust belt, especially the differential structural deformation, the geometrical styles of deformation and structural evolution.
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