因此，做好移动数据库的容灾建设工作是移动数据库建设中的重点所在。
So, the disaster recovery construction of mobility databases is one of the most important part of construction of WCDMA mobility databases.
简要介绍了目前容灾系统常用的数据容灾技术——异地数据复制技术，及其实际应用中的建设方案和性能估算方式。
Data disaster tolerance technology, which is usually used by disaster tolerance system, is presented in brief. Its construction solutions and performance evaluation are also given.
结合粗糙集理论和遥感数据中地物光谱特征空间分布信息，提出了一种基于光谱特征邻域的容差粗糙集分类方法，用来处理卫星遥感数据分类中的不确定性问题。
Based on the spectral feature neighborhood, this paper proposes a tolerant rough set classification method to handle the uncertainty in the process of satellite remote sensing data classification.
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