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讨论了电场中碱金属原子能级的Ｂ－Ｓｐｌｉｎｅｓ（基样条）计算方法，并采用基样条作为基矢集组成波函数，计算了０～４．５ｋＶ·ｃｍ－１电场中锂原子能级结构．结果与实验符合得很好，这表明基样条方法对强场中原子能级计算具有极大的优越性．根据计算结果，本文还对原子实和外电场对原子能级的影响作了讨论
The calculation method of B-Splines in the alkali metal atomic level in electric field is discussed and the wave function of base-vector is used as base-wave component. The structure of lithium atom in 0 ~ 4.5kV · cm-1 electric field is calculated . The results are in good agreement with the experiment, which shows that the method of base-spline has great superiority in the calculation of atomic energy level in strong field. According to the calculation results, we also discuss the influence of atomic and external electric fields on the atomic energy levels