The general category groups the general information that describes the learning object as a whole.
一般(General)范畴包含描述整个学习对象的一般信息。
Any group can be considered a category: group elements are arrows over one single object.
任意一个组可以被认为是一个范畴：组元素是单个object上的射。
Instances track data about multiple occurrences of the object that a category relates to.
实例跟踪关于类别相关对象的多个匹配项的数据。
List all Extenders for the given object under the specified category.
列出指定类别下给定对象的所有扩展程序。
Also, the characteristics, concept, the object of study, task, category, etc. of information literature are described.
对情报文学学的学科性质、概念、研究对象、任务、范畴体系等方面进行了概述。
Also, the characteristics, concept, the object of study, task, category, etc. of information literature are described.
对情报文学学的学科性质、概念、研究对象、任务、范畴体系等方面进行了概述。
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