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。
2
Regressing and fitting the experimental datum, the aim is to establish an empirical mathematical model for filtration rate of phosphoric acid slurry.
对实验数据进行回归拟合，建立了磷酸料浆过滤速度的经验数学模型。
3
Through studying the relationship between space vectors of different coordinate systems, a new model of three-dimensional datum transformation is proposed.