理解水平对比的重要性。
XML 中次序的重要性与关系数据模型中缺少固有次序形成了鲜明对比。
The importance of order in XML contrasts sharply with the absence of intrinsic order in the relational data model.
在这些文章中，我们强调了比较和对比技术的重要性并提出了最符合系统安全性要求的技术。
In these articles, we have emphasized the importance of comparing and contrasting technologies and coming up with those that best meet system security requirements.
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