If so, we run an initial pass over the topic that copies the entire tree, while merging any lists that should be together.
如果出现这种列表，就先对主题走一趟复制整棵树，同时合并应该连在一起的列表。
We have two Map/Reduce jobs [3] - one that is doing initial ingestion of the data and the second one merging data of the given type.
我们拥有两个Map/Reduce作业 [3]——一个会获取最初的数据，另一个会合并指定类型的数据。
Finally, the initial regions were merged to form the final segmentation result by a new region merging strategy.
最后，给出了一种区域合并策略，对初始分割获得的区域进行合并，得到最终的分割结果。
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