acceleration mechanism of cosmic ray

例句：

1. 1. The accelerometer isused to measure the speed of an object.
   加速度计用于测量物体的速度。
2. 2. The newtechnology has greatly improved the efficiency of theproduction process.
   新技术大大提高了生产过程的效率。
3. 3. Theacceleration mechanism plays a crucial role in thedevelopment of the industry.
   加速机制在行业发展中起着至关重要的作用。