particle electrophoresis

例句：

1. 1. The particles in the air are causing a lot of dust.
   空气中的粒子导致了很多灰尘。
2. 2. The particle accelerator is used to study subatomic particles.
   粒子加速器被用来研究亚原子粒子。
3. 3.The scientists found that the particles were moving at different speeds.
   科学家们发现这些粒子以不同的速度移动。