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用处理对力的粒子数守恒方法分析了Ａ～１９０区偶偶核系列晕ＳＤ带１９２－１９８Ｐｂ（１）和１９８Ｐｏ（１）的转动惯量随角频率变化的规律．计算中同时考虑了单极对力与Ｙ２０四极对力．实验结果在计算中得到较好的重视．特别是转动惯量变化的微观机制（包括中子和质子的各大壳以及各单粒子能级的贡献）在计算中得到极为清楚的展现．Ｊ（２）的上升，主要来自高Ｎ闯入壳（中子Ｎ＝７，质子Ｎ＝６）的贡献，而其它大壳对Ｊ（２）的贡献，基本上不随ω而变化．
The law of the moment of inertia with the frequency of the inertia of 192-198Pb (1) and 198Po (1) in the even-even-nuclear halo series A ~ 190 was analyzed by using the method of conservation of the particle number of the force. The calculation takes into account both the unipolar force and the Y20 quadrupole force. The experimental results get better attention in the calculation. In particular, the microscopic mechanisms of changes in moment of inertia, including the large shells of neutrons and protons and the contribution of each single-particle level, are clearly shown in the calculations. The increase of J (2) mainly comes from the contributions of high-N intruding shells (neutron N = 7 and proton N = 6), whereas the contribution of other large shells to J (2) basically does not vary with ω.