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。
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.
根据实际的物理对象，本文建立了系统三自由度动态数学模型。
The dynamic mathematics model is established from the actual physics objects in this paper.
以大位移井钻柱的部分或整体为研究对象，提出了钻井各种动态问题，建立了钻柱的各种动态行为的力学模型。
The drill string of ERW is taken as research object, the dynamic problem is brought forward during making hole, and the mechanics model about each dynamic action is established.
应用推荐