QE creates deposits: when the Fed buys a bond from an investment fund, a bank must intermediate the transaction.

量化宽松创造了存款：当美联储从投资基金购买债券时，银行必须为交易提供中介。

But nano-sized gaps force the crystals to grow upward, creating deposits that resemble elephants and jellyfish.

但是纳米级的间隙迫使晶体向上生长，形成类似于大象和水母的沉积物。

Precipitation reactions are what create geological deposits in the earth as well as rings around your bathtub.

沉淀反应是在地球上形成地质沉积物以及在浴缸周围形成环状物的原因。