neutron reflector

例句：

1. 1. The neutron reflector isused to detect the presence of radioactivematerials in the environment.
   中子反射器用于探测环境中放射性物质的存在。
2. 2. The neutron reflector is a critical component ofthe nuclear reactor's safety system.
   中子反射器是核反应堆安全系统的关键组成部分。
3. 3. The neutron reflector is designed to minimize the impact ofradiation on the surrounding area.
   中子反射器的设计旨在最小化辐射对周围区域的影响。