• 概念模型中,实体类型是以属性建构而成用于描述最上层概念结构例如商务应用程序中的客户订单

    In a conceptual model, entity types are constructed from properties and describe the structure of top-level concepts, such as a customers and orders in a business application.

    youdao

  • 概念模型中,实体类型是以属性建构而成用于描述最上层概念结构例如商务应用程序中的客户订单

    In a conceptual model, entity types are constructed from properties and describe the structure of top-level concepts, such as a customers and orders in a business application.

    youdao

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