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。
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。
The dynamic properties of this structure are then investigated by using the spectrum and the time-history methods.
本文在简单回顾网壳结构现状后，提出了一种预应力加肋网壳结构，并对它进行了动力性能研究。
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