古时候，在酒宴上，斟酒的人敬酒时，总是将酒壶盖顶起来一点，然后才能将酒倒出来．为什么要把壶盖顶起来一点呢？斟酒的人很聪明，在斟酒时运用了我们学到的物理知识——大气压强．因为，古时候的酒壶，大都是用铝铸的，壶盖和壶口接触非常严密，如果盖上盖子倒酒，倒出来一 In ancient times, at a banquet, when alcoholic people toasted, they always topped the lid of the jug and poured the wine. Why do you want to put the lid up a little? Alcoholic people are very clever and use the physical knowledge we learned when drinking alcohol - atmospheric pressure. Because, in ancient times, the jug was mostly made of aluminum. The lid and the spigot contacted closely. If you put the lid on it, pour it out and pour it out.