To demonstrate, let's apply a little database normalization to the previous example, splitting the owner field of PhoneNumber into a separate person table.
作为演示，我们将一个小的数据库规范化(normalization)应用于上一示例，将PhoneNumber的owner字段分割到单独的person表中。
Similarly, a mapping that describes the splitting of an address field into Line1, Line2, City, ZipCode would have one source column and four target columns.
类似地，如果一个映射描述的是将address字段分割为Line1,Line2,City,ZipCode，那么它将有一个源列和4个目标列。
The rate equations for a continuous four level laser are solved in this letter, taking into account the finite lower level lifetime and the crystal field splitting of the laser levels.
在考虑了有限的下能级寿命和激光能级与晶格场的相互作用的基础上，对四能级激光的速率方程组进行了求解。
In this paper we investigate the dynamic process of the localized wave function in double_well molecules using dc electric field and the relation between energy splitting and dc electric field.
讨论了在静电场作用下，双势阱分子中波函数随外加静电场定域的动态过程，以及能级裂距与外加静电场的关系。
By the transfer matrix method, the resonant splitting for ballistic conductance of a two-dimension electron gas is studied in the presence of an inhomogeneous perpendicular magnetic field.
利用转移矩阵方法，研究了在非均匀垂直磁场作用下的二维电子气中弹道电导的共振劈裂。
Using molecular closed orbit theory and the region splitting and consistent iterative method, we firstly compute the recurrence spectra of NO molecule in strong magnetic field theoretically.
利用分子的闭合轨道理论和分区自洽的迭代方法，首次从理论上计算了NO分子在强磁场中的回归谱。
Using molecular closed orbit theory and the region splitting and consistent iterative method, we firstly compute the recurrence spectra of NO molecule in strong magnetic field theoretically.
利用分子的闭合轨道理论和分区自洽的迭代方法，首次从理论上计算了NO分子在强磁场中的回归谱。
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