In today's wide, fuzzy Kuiper belt, the particles don't meet very often, so they stick around long enough to fall into resonances with Neptune.
2
一个带负电的粒子之间，的作用力,这本质上就是库伦力，我们可以把它，描述成一个引力。
So, if we think about the force that occurs between a positively and a negatively charged particle, what we have is essentially a Coulomb force, so we can describe this as a force of attraction.
3
当它们真正离得很近时，假设有一个带正负电的电荷，带有库仑引力。
So, when we get really close together, granted, there is a net positive negative charge with a Coulombic force of attraction.
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