As the brine dries, the salts are precipitated off gradually, yielding a more pure brine that is essentially lithium and salt.
随着水分的蒸发，盐逐渐沉淀下来，含锂和盐类的盐水会变得更纯。
2
With hemp ropes and bamboo cables reaching deep into the ground, they employed cast iron drills to reach the natural gas they used as a fuel to evaporate water from brine to produce salt.
麻绳和竹管被深入到地下深处，以铸铁深钻直到得到天然气，并以此为燃料将卤水中的水蒸发来生产食盐。
3
They'll crack them, and then they'll put them into a brine solution to salt-roast them in the shell as the nut is heated," Hudson says, "kind of a lot like salt-roasting in-the-shell peanuts."