这一系列关于XML设计的文章中，以前曾经讨论了在元素和属性间做出选择的一般原则。

Earlier in this series on XML design, I discussed principles for choosing between elements and attributes.

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此场景是在本系列的 第一篇文章中分步构建的；本部分将讨论此场景的关键设计注意事项。

This scenario was built step by step in the first article in this series; this section discusses the key design considerations for the scenario.

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本文是两篇系列文章的第一篇，讨论如何在多线程环境中设计并发数据结构。

This article, the first in a two-part series, discusses the design of concurrent data structures in a multithreaded environment.

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