Define the elements for the topic type, including the base topics.
为包括基本主题在内的主题类型定义元素。
Topic: the topic type mandates the structure for the content of a topic.
主题：主题类型限制了主题内容的结构。
Applying a general style sheet or transform to a specialized topic type.
对专门化主题类型应用常规样式表或转换。
The author only needs to learn the elements that are specific to the topic type.
作者只需要学习针对该主题类型的元素。
Here's the list of topics from the map, showing the nested topic type and title.
下面列出了映射中的主题，显示了嵌套的主题类型及标题。
This specialized section can be used in any topic type that allows section elements.
这个特殊的小节可以用在任何允许小节元素的题目类型中。
The designer of the topic type only needs to address a specific, manageable problem domain.
主题类型的设计值只需要处理特定的、可控的问题域。
Generalizing a topic of a specialized type (transforming it into a more generic topic type).
泛化专门化类型的主题(将其转化成更一般的主题类型)。
DITA includes three information types derived from the base topic type: task, concept, and reference.
DITA包括三种从基本主题类型派生的信息类型：任务、概念和参考。
The implementer of the processing for the topic type only needs to process elements that are special.
处理特定类型的实现者只需要处理那些专门的元素。
In most cases, these topic structures contain content elements that are not specific to the topic type.
在大多数情况下，这些主题结构包含的内容元素并不特定于主题类型。
This specialized topic type provides guidance to the author and ensures the consistency of all task topics.
这种专门化的主题类型为作者提供了指导信息，可以保证所有任务主题的一致。
An element of the Topic type, as shown in the following figure, contains an unbounded sequence of elements.
如下图所示，Topic类型的一个元素包含一个不受限制的元素序列。
The structure of a Package type, as shown in the following figure, is similar to the structure of a Topic type.
如下图所示，Package类型的结构类似于Topic类型的结构。
The DITA specialization articles outline the rules for each kind of specialization (topic type and domain type).
DITA专门化文章的附录描绘了这些规则。
Domain specializations should be derived either from topic (the root topic type), or from another domain specialization.
领域专门化应该从主题(根topic类型)或者其他领域专门化派生而来。
It mainly includes Chinese research study in classroom instruction and topic type Chinese research study after class.
它主要包括课堂教学中语文研究性学习和课外课题式语文研究性学习。
The DITA package provides a DTD for each topic type and an omnibus DTD (ditabase.dtd) that defines all of the topic types.
DITA包为每种主题类型提供一个DTD，并提供一个定义所有主题类型的综合 DTD（ditabase.dtd ）。
The domain identification entity lists the topic type as well as the domain and other domains for which the current domain has dependencies.
域标识实体列出主题类型以及域和同当前域有相关性的其它域。
Through topic granularity and topic type specialization, DITA brings the following benefits of the object-oriented model to information sets.
通过主题粒度和主题类型专门化，DITA为信息集带来了面向对象模型的以下优点。
You can model these constraints, conditions, and invariants independently using DITA specialization, probably by extending the concept topic type.
您可以使用DITA专门化分别为这些约束、条件和不变式建模，可能还要扩展concept主题类型。
Previously I used task topics; now I will extend the task topic by using structural specialization to create a new topic type, which I call a case.
上次我使用了task主题；现在我将通过使用结构性专门化创建一个新主题类型(我称之为case)来扩展task主题。
By creating a specialized topic type for each type of content, the product architect can ensure that each type of topic has the appropriate content.
通过为每种内容类型创建专门化的主题类型，产品架构师可以保证每种主题类型都有适当的内容。
The class attribute must include a mapping for every topic type in the specialized type's ancestry, even those in which no element renaming occurred.
class属性必须包含到专门化类型谱系中每种主题类型的映射，即使没有出现元素重命名也应如此。
By creating a specialized topic type for each type of content, the product architect can ensure that each type of topic has the appropriate content.
对于内容的每一类型，通过创建专门的主题类型，产品体系结构能够确保主题的每一类型都有适当的内容。
The new topic types are defined as an extension, or delta, relative to an existing topic type, thereby reducing the work necessary to define and maintain the new type.
相对于现有主题类型，以扩展或增加定义新主题类型，因此减少了定义和维护新类型所必需的工作。
DITA articles are usually authored using these three information types, or using a more generic topic type for information that does not fit any of the main categories.
DITA文章通常都使用这三种信息类型编辑，或者对不属于任何大类的信息使用更加一般的topic类型。
The topic type defines the information architecture within topics (the micro level) while the map type defines the information architecture across topics (the macro level).
主题类型定义主题内部的信息体系结构（在微观层次上），而映射类型定义跨越主题的信息体系结构（宏观层次上）。
Do not create a domain by specializing an already specialized topic type: This can result in unpredictable generalization behavior, and is not currently supported by the architecture.
不要通过专门化已经专门化的主题类型来创建领域，这样可能造成意料之外的泛化行为，该体系结构目前还不支持。
You can search content by topic, and can browse by type.
可以根据主题搜索内容，然后根据类型浏览。
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