uncollided neutron

例句：

1. 1. The uncollided neutrons are moving at high speeds.
   未碰撞中子以高速移动。
2. 2.The discovery of uncollided neutrons has revolutionized nuclear physics.
   未碰撞中子发现，核物理领域发生了革命。
3. 3. The study of uncollided neutrons is crucial for understanding the structure of matter.
   研究未碰撞中子对于理解物质结构至关重要。