ion core

例句：

1. 1. The ion core is the region around a charged particle where it interacts with other particles.
   离子核心是带电粒子周围的区域，它与其他粒子相互作用。
2. 2. The ion core plays a crucial role in the formation and stability of chemical bonds.
   离子核心在形成和稳定化学键中起着关键作用。
3. 3.In the study of plasma physics, the ion core is an important concept that helps us understand the behavior of charged particles in a plasma.
   在等离子体物理学研究中，离子核心是一个重要概念，它帮助我们理解带电粒子在等离子体中的行为。