SimpleXML is built on the dynamic nature of PHP and simply provides an XML document as a data structure of anonymous PHP objects with properties and text content.

SimpleXML建立在PHP的动态特性基础上，并且提供一个XML文档作为带有属性和文本内容的匿名php对象的数据结构。

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They show precursory properties, and reflect the dynamic characteristics of microcosmic and macroscopic crack structure of the medium in the seismogenic zone.

它具有前兆的性质并反映出孕震区活动断裂中介质微观与宏观裂隙结构的动办学特征。

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Based on the finite element analysis results of the dynamic properties of the structure, the acoustic radiation of the structure is analysed using the results of the surface velocity distribution.

在用有限元法分析结构动态响应特性的基础上，利用有限元分析得到结构表面振动速度分布，分析表面阻尼处理板结构的声辐射。

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