entity relationship短语⁵⁰⁸²⁸ 基本例句 实体关系 The final ERD entity relationship model diagram and system datum dictionary are given through data sheets normalization during logic design and physical design. 在逻辑设计与物理设计过程中通过数据规范化后得出最终的 ER模型图并给出系统数据字典。 cnki Every aggregation type corresponds to a data structure diagram and an entity relationship model. 每种聚合类型对应一种数据结构图和 ER模型。 cnki