They may determine the data structure of external interfaces or some physical systems, and therefore represent physical data structures to be transformed within interfaces.

它们会确定外部接口或一些物理系统的数据结构，因此描绘出在接口中进行转换的物理数据结构。

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This means the structure of your objects is not tied to the structure of the XML — you can restructure your object classes without needing to change the XML format used for external data transfer.

这意味着对象的结构与XML的结构没有联系-您可以重新构造对象类，而不必更改用于外部数据传送的xml格式。

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By using the data of 2002, the paper empirically analyzes the relationship between external credit guarantee and performance and capital structure of listed companies.

本文以2002年数据为基础，分析了上市公司对外担保与公司业绩和资本结构之间的关系。

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