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.

这些基本上是带正电种，由于物带负电，这些种就像磁铁一样物。

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

通过在高温下将试剂注入溶剂，他创造了小种， 在这些种周围可以形成更大种。