本规范EPUB Open Container Format（OCF）3.0.1定义了一种文件格式和处理模型，用于将包含EPUB？出版物的一组相关资源封装到单个文件容器中。 本规范是组成EPUB 3的一系列相关规范之一，EPUB 3是基于XML和Web标准的数字出版物交换和交付格式的第三次主要修订版。本规范应与构成EPUB 3的其他规范一起阅读和理解: EPUB 3概述[EPUB3概述]，它提供了EPUB的信息性概述以及EPUB 3其余文档的路线图。 首先应该阅读概述。 EPUB出版物3.0.1[Publications301]，定义了EPUB出版物的每个格式副本的语义和总体一致性要求。 EPUB内容文档3.0.1[ContentDocs301]，它定义了在EPUB出版物的上下文中使用的XHTML、SVG和CSS的概要文件。 EPUB Media Overlays 3.0.1[MediaOverlays 301]，它定义了文本和音频同步的格式和处理模型。 OCF是EPUB出版物所需的容器技术。OCF可能在以下工作流中发挥作用: 在制作EPUB出版物的准备步骤中，在不同个人和/或不同组织之间交换正在进行的EPUB出版物时，可以使用OCF作为容器格式。 从出版商或转换公司向发行或销售渠道提供EPUB出版物时，OCF是推荐的容器格式，用作传输格式。 将最终EPUB出版物交付给EPUB阅读系统或用户时，OCF是容器所需的格式，该容器包含构成EPUB出版物的所有资产。 OCF规范定义了在摘要中构造文件集合的规则:“抽象容器”。它还定义了在ZIP存档中表示这个抽象容器的规则:“物理容器”。ZIP物理容器的规则基于[ODF]使用的ZIP技术。OCF还为需要此功能的EPUB出版物定义了一种标准方法，用于混淆嵌入式资源，例如字体。 本规范取代开放式容器格式（OCF）3.0[OCF30]。有关本规范与其前身之间差异的信息，请参阅[EPUB3Changes]。

This specification, EPUB Open Container Format (OCF) 3.0.1, defines a file format and processing model for encapsulating the set of related resources that comprise an EPUB？ Publication into a single-file container. This specification is one of a family of related specifications that compose EPUB 3, the third major revision of an interchange and delivery format for digital publications based on XML and Web Standards. It is meant to be read and understood in concert with the other specifications that make up EPUB 3: The EPUB 3 Overview [EPUB3Overview], which provides an informative overview of EPUB and a roadmap to the rest of the EPUB 3 documents. The Overview should be read first. EPUB Publications 3.0.1 [Publications301], which defines the semantics and overarching conformance requirements for each Rendition of an EPUB Publication. EPUB Content Documents 3.0.1 [ContentDocs301], which defines profiles of XHTML, SVG and CSS for use in the context of EPUB Publications. EPUB Media Overlays 3.0.1 [MediaOverlays301], which defines a format and a processing model for synchronization of text and audio. OCF is the required container technology for EPUB Publications. OCF may play a role in the following workflows: During the preparation steps in producing an EPUB Publication, OCF may be used as the container format when exchanging an in-progress EPUB Publication between different individuals and/or different organizations. When providing an EPUB Publication from publisher or conversion house to the distribution or sales channel, OCF is the recommended container format to be used as the transport format. When delivering the final EPUB Publication to an EPUB Reading System or User, OCF is the required format for the container that holds all of the assets that make up the EPUB Publication. The OCF specification defines the rules for structuring the file collection in the abstract: the "abstract container". It also defines the rules for the representation of this abstract container within a ZIP archive: the "physical container". The rules for ZIP physical containers build upon the ZIP technologies used by [ODF]. OCF also defines a standard method for obfuscating embedded resources, such as fonts, for those EPUB Publications that require this functionality. This specification supersedes Open Container Format (OCF) 3.0 [OCF30]. Refer to [EPUB3Changes] for information on differences between this specification and its predecessor.