这演示了RUP过程的递增的特点：每个任务，每次迭代，都是在前面工作的基础之上进行的。

This demonstrates the incremental aspect of RUP: each task, or iteration, builds on, and adds to, the work done previously.

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他们是基础设施领域最大的施工方，他们是非洲最大的债主，中非双边贸易额逐年递增，已经突破了1000亿美元。

They are the biggest builders of infrastructure. They are the biggest lenders to Africa, and China-Africa trade has just pushed past $100 billion annually.

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为使仅以更改为依据的备份更轻松，DB 2 UDB在完整联机备份(级别0)的基础上又提供了递增式(级别1)和delta备份(级别2)。

To facilitate the backup on changes only, DB2 UDB provides incremental (level 1) and delta (level 2) backup on top of a full online backup (level 0).

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