soft cosmic ray

例句：

1. 1. The soft cosmicrays are believed to be the result ofcollisions between atoms and subatomic particles.
   软宇宙射线被认为是原子和亚原子粒子碰撞的结果。
2. 2. The study of soft cosmic rays has led to a betterunderstanding of the origins of the universe.
   研究软宇宙射线有助于我们更好地理解宇宙的起源。
3. 3. The detection of soft cosmic rays has provided evidence for the existenceof dark matter.
   软宇宙射线的探测为暗物质的存在提供了证据。