Since the client has the complete data model hierarchy, it is possible for the client to send subclasses in the hierarchy in a request to the Web service.
由于客户端拥有完全的数据模型层次，客户端就有可能在Web服务请求中发送层次中的子类。
The Order could be the root of another hierarchy in the data model.
订单可能是数据模型中的其他层次的根。
Figure 6 presents the updated persistence model for mapping the entire class hierarchy into one data entity.
图6显示了一个更新过的持久性模型，用于将整个类层次结构映射成一个数据实体。
Poor support for hierarchy: The Atom data model is that it doesn't directly support nesting or hierarchies.
对分层结构的支持很弱：ATOM数据模型并不直接支持嵌套和分层。
Using the XML data model, the whole hierarchy of data object wrappers can be eliminated, leaving the programmer to focus on the business logic rather than on the business data management.
通过使用XML数据模型，就可以取消整个数据对象包装器层次结构，让开发人员将注意力集中在业务逻辑上，而不会为业务数据管理分心。
On the basis of uniform data model, the sub-machining process planning ofpart is auto-created by means of analytic hierarchy, The step decision methods basedon AHP is put forward.
在统一数据模型的基础上，从特征层和零件层分层规划，实现了零件加工子工艺的自动创成；提出基于AHP的工步排序决策方法。
Based on hierarchy of information fusion being corresponding with function of fault diagnosis, it puts forward a data fusion model for fault diagnosis of rotating machines.
将信息融合的层次与故障诊断的功能相对应，提出了旋转机械振动故障诊断的信息融合模型。
Based on hierarchy of information fusion being corresponding with function of fault diagnosis, it puts forward a data fusion model for fault diagnosis of rotating machines.
将信息融合的层次与故障诊断的功能相对应，提出了旋转机械振动故障诊断的信息融合模型。
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