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家里热水瓶是圆柱形的,饮料瓶也是圆柱形的,为什么装液体的容器大多是圆柱形的呢?A:人们总是希望利用最少的材料生产出能够装最多东西的容器。我们动笔算一下就会发
The thermos at home is cylindrical and the beverage bottles are cylindrical. Why is the liquid container mostly cylindrical? A: People always want to use the least amount of material to produce the container that can hold the most things. We'll make a quick calculation