The contents of the standards cover overview, normative general elements, technical elements and supplement. The front cover, foreword, title and context are the essential elements of the standards.
标准的内容包括资料性概述要素、规范性一般要素、技术要素和补充要素，其中封面、前言、名称、范围为必备要素。
The contents of the standards cover overview, normative general elements, technical elements and supplement. The front cover, foreword, title and context are the essential elements of the standards.
标准的内容包括资料性概述要素、规范性一般要素、技术要素和补充要素，其中封面、前言、名称、范围为必备要素。
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