conceptual model短语⁶⁸⁷⁷⁹ 基本例句 概念模型 The structures expressed within the service analysis model are a direct reflection of those within the conceptual model or logical data model where no conceptual model formally exists. 服务分析模型中表达的结构是概念模型或没有概念模型情况下的逻辑数据模型中的结构的直接反映。 ibm