• 本文详细讨论数据模型的形式化表达抽象结构

    We firstly talk about what is domain and data model, and define their use range.

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  • 两种方式创建新的控制结构定义新的抽象提供了可能

    These together provide the possibility of creating new control structures and define new abstractions.

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  • 物理抽象层次捕获系统实现结构

    The physical level of abstraction captures the structure of the system implementation.

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  • 名称一个抽象结构

    It is the name of an abstract structure.

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  • 对象类别必须是有结构不能范例化一个抽象类别。

    The class of the object must be structural; you cannot instantiate an abstract class.

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  • 图则一个程序结构抽象表示

    A class diagram is a more abstract representation of the structure of a program.

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  • 对象类别必须是有结构不能范例化一个抽象类别。

    The class of the object must be structural ; you cannot instantiate an abstract class .

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  • 提出了夹具抽象信息结构层次分析理论

    The analysis theory of fixture abstract information structure hierarchy is put forward.

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  • 一个抽象层次结构得到正确

    Get the right field from an abstract class hierarchy?

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  • 提出了夹具抽象信息结构层次分析理论

    Thus, different levels of abstraction may characterize the concept of theory.

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  • 提出了夹具抽象信息结构层次分析理论

    Thus, different levels of abstraction may characterize the concept of theory.

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