spin-spin splitting

例句：

1. 1. The spin-spin splitting in the neutron star is a mystery that has puzzled scientists for decades.
   中子星中的自旋分裂现象是科学家几十年来一直困惑不解的谜团。
2. 2. The spin-spin splitting of the nuclei in the atoms is a fundamental principle of quantum mechanics.
   原子核中的自旋分裂是量子力学的一个基本原理。
3. 3. The spin-spin splitting in the neutron star is thought to be caused by the strong nuclear force.
   中子星中的自旋分裂被认为是由强核力引起的。