Dual Class Structure 牛卡计划 ; 双重股份结构 ; 双层股权结构 ; 双层结构
secondary-class structure 二类建筑
safety class structure 安全级构筑物
class structure of population 人口阶级构成
social class structure 帮助社会阶级结构
dual-class structure 牛卡计划
age class structure 龄级结构 ; 年龄级结构
In American society, however, the class structure was less rigid; some people changed occupations easily and believed it was their duty to improve their social and economic position.
然而，在美国社会，阶级结构没有那么严格；有些人很轻易地就改变了职业，并认为提高他们的社会和经济地位是他们自己的责任。
You can see the basic survey class structure in Figure 1.
您可以在图1中看到这个基本调查类的结构。
The static view of the domain level models the class structure and their relationships of the objects witnessed in the use case.
域层次的静态视图为类结构和在使用案例中出现的它们的对象的关系建模。
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