First, the paper talked about the standard of security computer networking, mainly analyzing the structural standard for OSI security system.

本文首先讨论了计算机网络安全标准，重点分析了OSI安全体系结构标准。

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In more traditional engineering disciplines, this way of expressing structural relationships has been standard operating praxis for a very long time.

在较传统的工程规程中，这种表示结构关系的方式已经作为标准的操作实践很长时间了。

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More modern markup languages, such as the Standard Generalized markup language (SGML) and XML, popularized more abstract structural markup such as books, chapters, sections, and so on.

较现代的标记语言，例如Standard Generalized Markup Language (SGML)和XML，则使像书、章、节等这类更为抽象的结构标记更易于为大众理解和接受。

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After the 1968 Ronan Point tower block partial collapse in London, in which four people died, new British Standard Structural Design Codes for concrete were introduced to prevent it happening again.

BBC: WTC collapse forces skyscraper rethink

"Structural integrity during a crash is a global standard for Volkswagen, " the company said in an emailed statement.

NPR: AP IMPACT: Cars Made In Brazil Are Deadly