ultrarelativistic electron

例句：

1. 1. The particle accelerator is designed to detect particles with ultrarelativistic velocities.
   粒子加速器旨在探测具有超相对论速度的粒子。
2. 2.In the study of cosmology, it is important to consider the effects of ultrarelativistic motion.
   在天体物理学研究中，考虑超相对论运动的影响是很重要的。
3. 3.The researchers found that the particles had ultrarelativistic speeds, which could explain the observed phenomena.
   研究人员发现这些粒子的速度是超相对论性的，这可以解释观察到的现象。