The multiconfiguration Dirac-Hartree-Fock (MCDHF) method is used to calculate energies, lifetimes, wavelengths, transition probabilities, weighted oscillator strengths, and line strengths for electric dipole (E1), magnetic dipole (M1), electric quadrupole (E2), and magnetic quadrupole (M2) transitions among the lowest 226 fine-structure levels arising from the 2s²2p⁴, 2s2p⁵, 2p⁶, 2s²2p³3l, 2s2p⁴3l, and 2p⁵3l (l = s, p, d) configurations in O-like Nb XXXIV. The valence and core-valence correlation effects are included in the calculations. The Breit-interaction and the leading quantum electrodynamics contributions are taken into account in the relativistic configuration interaction calculations. The present energies, wavelengths, line strengths, and oscillator strengths are compared with the available experimental and other theoretical results. The accuracy of the present results is estimated using the comparison between the results from the two largest layers in the present MCDHF calculations.

多配置Dirac-Hartree-Fock（MCDHF）方法用于计算电偶极（E1），磁偶极（M1），电四极（E2）的能量，寿命，波长，跃迁概率，加权振荡器强度和线强度和磁四极（M2）的最低226微细结构级别之间转变从2产生的小号² 2 p ⁴，2小号2 p ⁵，2 p ⁶，2小号² 2 p ³ 3升，2小号2 p ⁴ 3 l和2 p ⁵ 3 lO型Nb XXXIV中的（l  =  s，p，d）构型。价和核心价相关效应包括在计算中。相对论构型相互作用计算中考虑了Breit相互作用和主要的量子电动力学贡献。将当前的能量，波长，线强度和振荡器强度与可用的实验和其他理论结果进行比较。使用当前MCDHF计算中两个最大层的结果之间的比较来估计当前结果的准确性。