The database in grid environment is an important part of data grid, while transaction committing protocol is a key point in transaction management.

网格数据库是数据网格的重要组成部分，而事务提交协议又是数据库中事务处理的重要组成部分。

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To overcome the defects of data representation algorithms in temporal data mining, segmentation algorithm of key-point-based error checking is proposed.

针对时序数据挖掘中常见数据表示算法的缺陷，提出了基于关键点的误差检验分段算法。

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The methodology and technology that deal with the product data in those collaborating units is the key point in the product collaborative development lifecycle.

其中实现各个协作单位间的产品数据的集成管理的方法和技术，是异地产品协同开发过程中的一个关键性问题。

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