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你喝糖水的时候会联想到湖中有多少条鱼吗?有人会奇怪:喝糖水与湖中有多少条鱼有什么联系呢?大家都知道,一杯糖水分成两半,溶液与溶质之比是不变的.根据这个性质,我们就可以估计湖中有多少条鱼了.
When you drink sugar, will you think of how many fish there are in the lake? Some wonder if there is a connection between drinking sugar water and how many fish there are in the lake. Everyone knows that a glass of sugar is divided in half and the ratio of solution to solute is Unchanging. According to this nature, we can estimate how many fishes are in the lake.