peening machine

例句：

1. 1. The collider is designed to test the strength of materials under extreme conditions.
   这个碰撞机旨在测试材料在极端条件下的强度。
2. 2. The particle accelerator is used to study the structure of subatomic particles.
   粒子加速器用于研究亚原子粒子的结构。
3. 3. The collider has been a major source of scientific discovery for decades.
   这个碰撞机几十年来一直是科学发现的主要来源。