This represents the one XML element (from Listing 1) and is the basic structure for the class hierarchy.
它表示一个XML元素(来自清单1)，是类层次的基本结构。
Discover the hierarchical tree structure classes by finding the class in the Model Explorer, double-click to open the class in the editor, and press F4 to open the hierarchy tree.
通过寻找模型搜索器中的类，找出等级树状结构类，双击打开编辑器中的类，按下f 4以打开等级树。
From then on, the ancient Chinese social class structure began to change from hierarchy standard to wealth standard.
由此，中国古代社会的阶层结构出现转型，由身份等级制向以财富为标准的贫富转化。
According to class-object level, structure level, subject level, attribute level and service level, we analysis the class hierarchy of hydraulic system, their interrelation and their communication.
按照类——对象层、结构层、主题层、属性层和服务层五个层次分析了液压系统的类层次构成及其连接与通信。
According to class-object level, structure level, subject level, attribute level and service level, we analysis the class hierarchy of hydraulic system, their interrelation and their communication.
按照类——对象层、结构层、主题层、属性层和服务层五个层次分析了液压系统的类层次构成及其连接与通信。
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