实体联系模型的英文

e/r model

entity relatio hip model

entity relationship model

entity-relationship model

• 实体:    substance entity
• 联系:    contact; touch; co ...
• 模型:    model; pattern

例句与用法

1. The entity related data model to implement the pdm is introduced . the development method of evolving and increasing pdm database , developing procedure and its design are put forward . in the third chapter , the evolving and increasing of the pdm system is analyzed from view of the user and designer
   第二章，阐述了pdm数据库的递增进化过程，递增进化的pdm系统数据模型，对数据对象实体联系模型进行了分类，介绍了pdm系统实现的数据对象实体联系模型，提出了pdm数据库递增进化开发方法、步骤和设计过程。