It's basically seed crystals that are positively charged, and because the dirt in the water is negatively charged, these seed crystals act like dirt magnets.

这上是带正电的种，由于水中的污物带负电，这种就像磁铁一样吸附污物。

By injecting reagents into a solvent at high temperature, he created small seed crystals around which bigger ones could form.

通过在高温剂注入溶剂中，他创造了小的种， 在这种周围可以形成更大的种。