The relationships of information process in these parts are analysed, and then the Entity-Relation (E-R) diagram of machinability data is designed according to the analysis of machinability data.
其次，在分析切削数据之间联系的基础上，设计了金属切削数据的实体模型（E—R图）。
The relationships of information process in these parts are analysed, and then the Entity-Relation (E-R) diagram of machinability data is designed according to the analysis of machinability data.
其次，在分析切削数据之间联系的基础上，设计了金属切削数据的实体模型（E—R图）。
应用推荐