我们俩家都有井,井水冬暖夏凉,大家都喜欢它。学习了热传递的三种方式以后,我们产生了疑问,冬天,是谁把热传递给了井水?夏天,井水的热又传到哪里去了?百思不得其解,我们只好去问老师。老师对这个问题很感兴趣,问我们能不能自己去揭开这个谜团?我们商量后,决定从测量井水的温度入手,首先弄清井水是什么时候开始变暖的,又是什么时候变凉的。 We both have wells, well and cool in winter, everyone loves it. We learned the heat transfer of the three ways later, we have a question, winter, who passed the heat to the well water? Summer, well water heat and where to go? Baffled, we had to ask teacher. The teacher was very interested in this issue and asked if we could uncover this mystery ourselves. After discussing the matter, we decided to start by measuring the temperature of the well water, first of all, when the well water started to warm up and when did it change cold.