这些角色包括应用程序、横幅、补充说明、内容信息、主内容、导航和搜索。
These roles include application, banner, complementary, contentinfo, main, navigation, and search.
业务信息( SI )是用来描述传送系统、传送内容和广播数据流时间表等的数据,是补充MPEG 2节目说明信息( PSI)的附加数据。
The service information (SI) is the data used to describe transport system, transport content and data stream time table, and also is the additional data used to complement MPEG-2 PSI.
我们认为前后项不仅仅是简单的推论关系,而是后项对前项的进一步补充说明,帮助读者理解语篇内容。
We think the antecedent and consequent are not only keep a simple deduce relationship, but a reinforce explanation for the antecedent. It helps reader to understand easily.
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