科研之友
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<正>在晴朗的冬天在晴朗的冬天,我们很喜欢坐在室外晒太阳,因为这样可以让我们的身体暖和起来。其实这就是一种热传递现象是一种热传递现象。Heat can be defined as the process of transfer of thermal energy from or to an object. The temperature difference between thehot and cold media is the driving force in energy transfer. And as
