1. The field would destroy degeneracy of partial flat bands at Fermi level in zigzag ribbons. 调制电场破坏了锯齿状石墨带，在费米能上部分平坦能带的简并度。
2. After interaction and particle filtering, particles in the models with the fixed number are resampled to reduce the degeneracy of filtering. 各模型中相对固定数目的粒子群经过相互交互、粒子滤波后再进行重抽样以减少滤波退化现象。
3. The influence that spin of an electron affects energy degeneracy of one-electron system is discussed from symmetry, and the general law of the influence is produced. 从对称性出发，讨论了电子自旋对单电子体系能量简并的影响，并得出影响的一般规律。
英英解释
n.
1. the state of being degenerate in mental or moral qualities
2. moral perversion; impairment of virtue and moral principles
