啤酒瓶底的沉淀物一到瓶颈部位，就不要往外倒啤酒了。此时你的一杯啤酒会金灿灿地发亮，酒泡鼓出酒杯口〓，而又不会溢出杯外。 As soon as the sediment starts creeping up the shoulder of the bottle, stop pouring. You should now have a glass of star-bright beer with a head(of foam) that stands proud of the glass but does not overflow.
水冶金术通过液体过程、，象过滤，提炼，沉淀等方法处理金属|，从矿石中或矿石浓缩物中分离出金属 The treatment of metal or the separation of metal from ores and ore concentrates by liquid processes, such as leaching, extraction, and precipitation.
把咖啡搅一搅好让渣滓沉淀|。 Stir the coffee to settle the grounds.
