程序集的输入和输出步骤有一个突出的作用：它们将关系型数据转换成分层数据，再将分层数据转换到关系型数据。
The input and output steps of the assembly have a distinguished role: They transform relational data into hierarchical data and hierarchical data back to relational data, respectively.
数年前，他提炼出一种技术，可以将基因网络“毛团”——对基因交互作用密集纠结的描绘——转化成分层图。
Several years ago, he refined a technique for turning gene-network "hairballs" - densely tangled depictions of gene interaction - into hierarchical maps.
媒介趣味是社会分层的反映及结果，具有社会身份的区隔作用。
As the reflection and result of social stratification, media taste has the function of segment in social status.
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