比如苯环，也就是最低电子态，远低于第一激发态。
If you have benzene, for example, the lowest electronic state, is quite far below the first excited state.
到目前为止的kT都比第一激发态能级低，所有状态都在基态。
Where the kT is lower than, by far, than the first excited level. Everything's in the ground state.
第一激发态的简并没有消除，第二激发态的简并被部分地消除。
The degenerate energy levels of the first excited state are not relieved. The degenerate energy levels of the second excited state are relieved partially.
基态分子分解反应是吸热反应，而单态第一激发态分解反应是放热反应。
The decomposition reaction is endothermic reaction for the ground state of hydrazine, but it is exothermic reaction for the first excited singlet state of hydrazine.
因此，发生第一激发态跃迁时，将发生分子间电子转移，从而引起荧光猝灭效应。
It suggests that intermolecular electron transfer occurs during the transition of the first excited state, which results in the fluorescence quenching effect.
数值计算结果表明：当量子线截面半径减小时，基态和第一激发态能量都将单调增加。
The numerical results show, with the decreasing radius of the quantum wires, the ground state energies and the first excited state energies increase mononically.
压力实验结果还表明大量子点的第一激发态发光峰来源于电子的第一激发态到空穴的第一激发态的跃迁。
The pressure experiments suggest that the excited state emissions originate from the optical transitions between the first excited electron states and the first excited hole states.
采用原子蒸气束激光诱导荧光法测量钆原子的第一激发态的同位素位移及超精细结构、原子跃迁自发辐射的分支比和原子蒸气束的多普勒宽度。
The isotope shifts, hyperfine structure, spontaneous emission branch ratio of the first excited level and Doppler width of the atom vapor beam were measured using laser induced fluorescence.
然而，体系激发态的第一性原理理论及其计算要比基态的理论计算复杂得多。
However, the first principles computation of excited states is more complexity than ground-state calculations.
然而，体系激发态的第一性原理理论及其计算要比基态的理论计算复杂得多。
However, the first principles computation of excited states is more complexity than ground-state calculations.
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