You could basically spew a bunch of particles in orbit that could take out that orbit from being useful for decades or longer.

你基本上可以在轨道上喷出一堆粒子，这些粒子可以使该轨道在数十年或更长时间内无法使用。

If tattoos are just a bunch of particles in the skin, could we swap those particles out for ones that do something more interesting?

如果纹身只是皮肤上的一堆颗粒，我们能否将这些颗粒换成更有趣的颗粒？