cold neutron

例句：

1. 1. The neutrons in the nucleus are responsible for the stability of the atomic structure.
   核中的中子负责原子结构的稳定。
2. 2.Neutrons are often used as a source of heat in nuclear reactors.
   中子通常被用作核反应堆的热源。
3. 3. Neutrons can also be used to detect radiation leaks in nuclear facilities.
   中子也可以用于检测核设施中的辐射泄漏。