... 病 21三体综合 染色体病 症患儿 （先天愚唇裂与腭裂 疾病的分子机制 一、基本概念与分类 （Basic concept and classification）（一）基因突变（Gene mutation） 基因组DNA分子在结构上发生核酸序列或数目的改变。
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At first, the paper fully expatiates the basic viewpoint of networks security, dynamic security model of P2DR, and the basic concept and classification of instruction detection.
论文首先全面阐述了网络安全的基本观点、P2DR的动态安全模型和入侵检测的基本概念及分类。
This article mainly refers to the basic concept, classification and process of web data mining, as well as its application in e-commerce.
主要介绍网络数据挖掘的基本概念、分类、挖掘的过程及其在电子商务中的应用。
The first section not only introduces the basic problems of the plan, but also investigates the concept, characteristics, classification, the nature and the role of the plan, and so on.
第一章主要介绍了行政规划的基本问题，探讨了行政规划的概念、特征、分类、性质和作用等等问题。
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