Analyzes the occurrence cause of debris flow in Fengcheng, discusses the classification and characteristics of debris flow, points out the damage of debris flow and material prevention methods.
对凤城地区泥石流的发生原因进行了分析，探讨了泥石流的分类和特征，指出泥石流的危害并提出具体的防治办法。
On basis of above work, the foundational theory including definition and classification which is fit for the characteristics of maintainability design is discussed.
在此基础上，探讨了适合于维修性设计自身特点的维修性约束和维修性冲突的定义、分类等基础理论。
This paper analyzed the characteristics of the software component Category, and introduced the faceted classification of domain characteristics with the help of domain engineering.
分析了软件构件的刻面分类描述的特点，并借助领域工程的思想引入领域特性刻面。
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