particle astro-physics

例句：

1. 1.The particle accelerator is used to study the structure of matter.
   粒子加速器用于研究物质的结构。
2. 2. The particle physicist discovered a new type of particle.
   粒子物理学家发现了一种新的粒子。
3. 3. The particles in the universe are constantly colliding with each other.
   宇宙中的粒子不断地相互碰撞。