Join the two maps together.

把这两个地图连起来。

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These maps simply join the correct place in the database to the field of the object that you require.

这些映射只是将数据库中的正确位置与您请求的对象的字段连接起来。

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Compare the maps in the crosscutting comparison tool to detect any unwanted changes to the join points affected by your aspects.

在横切比较工具中比较这些图，以发现受方面影响的联结点所出现的不希望的改变。

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