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本文利用Ｒｅｎｎｅｒ－Ｔｅｌｌｅｒ效应理论和微扰理论计算了ＮＯ_２分子的~２Ｂ１电子态的Ｋ＝２支壳层和~２Ａ_１电子态的Ｋ＝１支壳层的能级结构，并把计算结果与实验结果作了比较，此外还计算了~２Ｂ_１（Ｋ＝２）－~２Ａ_１（Ｋ＝１）跃迁的荧光光谱强度分布规律。
In this paper, the energy levels of the K_2 shell of the ~ 2B1 electron state and the K_1 shell of the ~ 2A_1 electronic state of the NO_2 molecule have been calculated by the Renner-Teller effect theory and the perturbation theory. The calculated results are compared with the experimental results The results were also compared. In addition, the fluorescence intensity distribution of ~ 2B_1 (K = 2) - ~ 2A_1 (K = 1) transition was also calculated.