Without knowledge by description, however, we would never pass beyond the limits of our own individual experience.
没有知识的描述，但是，我们绝不会通过超出我们自己的个人经验。
To the authors' knowledge, this is the first description of cervical hemangioma treated by balloon kyphoplasty.
就作者所知，这是首次描述对颈椎血管瘤以气球囊椎体后凸成形进行治疗。
It is studied to applications of ontology mutuality technology in emergency domain by organizing ontology knowledge, description and constructing emergency coordination model.
本文主要研究本体相关技术在应急领域本体知识组织、描述和应急协同模型构建中的应用。
An ontology is the entity which composes of the concept of knowledge, the relationship between the concepts and formal description language can be identified by computers.
本体是由知识中的概念、概念间的关系以及计算机可以识别的形式化描述语言组成的实体。
Firstly the method of knowledge representation by owl ontologies is researched, then the formal and semantic description is introduced, and finally knowledge is represented by an instance.
本文在研究owl本体进行知识表示的机制后，阐述形式化表示及语义说明方法，并结合实例说明知识的表示。
The paper describes and develops ontology by object-oriented knowledge representation, hence the representation leads to domain algebra system and agent service description language.
为此，文中用面向对象的知识表示方法描述并建立本体，并以此为基础形成领域操作代数系统和智能体服务描述语言。
This thesis starts with an introduction of the background knowledge and the framework reuse technology and its advantages followed by a description of component reuse, domain engineering and so on.
论文着重从以下几个方面进行介绍：首先从背景知识谈起，明确了框架的概念和优点：介绍了构件、领域工程等技术，以及这些技术与框架的关系；
This thesis starts with an introduction of the background knowledge and the framework reuse technology and its advantages followed by a description of component reuse, domain engineering and so on.
论文着重从以下几个方面进行介绍：首先从背景知识谈起，明确了框架的概念和优点：介绍了构件、领域工程等技术，以及这些技术与框架的关系；
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