本文介绍了DPTK表达式语言，并演示了如何使用它创建访问数据模型的有效方法。
This article described the DPTK expression language and demonstrated how it can be applied to create an effective way of accessing your data model.
我首先简要介绍任何语言设计者在类型模型中必须考虑的一些决策，着重介绍静态类型和动态类型的一些不同的决策。
I'll start with a general description of the decisions any language designer must consider within a typing model, focusing on the controversial decision of static versus dynamic typing.
介绍了文物领域本体的概念模型，研究了用owl语言建立文物领域本体的设计与实现方法。给出了对OWL本体进行解析和推理的方法。
It introduces the concept models of the antique domain ontology, involving the analysis, reasoning, design and implementation of OWL-based domain ontology for antique.
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