提出了基于相似单元置换的设计重用步骤及单元化系统集成设计方法。

The steps of design by reuse based on similarity unit substitution and system integration design method based on units are discussed.

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单元测试常常需要测试有细微差异的代码行为，因此涉及到相似和重复的情况。

Unit tests often need to test nuanced behavior of the code under test, leading to similar and duplicated situations.

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nPartition允许在其他分区在线的情况下对一个分区进行维护，这与IBM的逻辑分区相似；但是，在把单元从一个分区转移到另一个分区时，系统需要重新引导。

NPartitions let you service one partition while others are online, which is similar to IBM's logical partitioning, though systems require a reboot when moving cells from one partition to another.

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