EPISODE · Nov 1, 2021 · 1 MIN
水壶的底部是波浪形的
from 伊人耳朵SPA/一分钟耳朵SPA
当你走进厨房,看到水壶的时候,你把它拿起来放在手上看一眼,你会发现一个奇怪的现象,水壶的底部竟然是波浪形的。这似乎很奇怪,因为我们炒菜的锅底部是平的,做米饭的电饭煲内胆底部也是平的,那为什么偏偏水壶的底部要是波浪形的呢?把水壶的底部设计成波浪形就是为了让壶底与火焰的接触面积变大。波浪形的水壶,增加了壶底的底面积,这样,在烧水的时候,水壶的底部就与火接触的面积变大,传递的热量也越多,水自然就烧得越快了。同时,波浪形的壶底还可以增加水壶的弹性,使水壶更加坚固。电热水壶的底部是平的,那是因为里面弯曲的电热棒本身就加大了烧水的速度。
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水壶的底部是波浪形的
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