An XML structure is typically composed of elements and attributes-at the most basic level, elements are containers for data and attributes are labels for the data containers.
一个XML结构通常由元素和属性组成—在最基本的层面上，元素是数据容器，属性是数据容器的标签。
The sea platform electric power distribution automated system basic structure is: In the structure USES two level control, three networks ways, safe reliable, advanced are easy to expand.
海洋平台电力配电自动化系统的基本框架结构为：结构上采用两级控制，三层网络方式，安全可靠，先进易扩展。
The paper introduced the technical parameters, basic structure and work cycle of each subsystem of air compressor with the aim to improve the operation level of workers.
文中介绍了空压机的有关技术参数和基本结构、各子系统工作循环，以便提高工作人员对空压机的操作水平。
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