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四、辩证思维的方法 1.事物间的相互联系、相互制约的关系物理现象中普遍地存在着对立的倾向,这类例子是很多的。例如,流体的流动——压强差是流体(包括液体和气体)流动的原因;但流体流动的结果使压强差减小,又阻碍流体流动的进行;至压强差为零时,流体就不再流动。又如,热传递的平衡——两物体间或一物体的不同部分有温度差时,就会产生热传递;热传递的结果使温差减小,这样又阻碍热传递的进行;至温度差为零时,就达到热传递的平衡。
Fourth, the method of dialectical thinking 1. The interrelationship between things, the relationship between mutual restraint Physical phenomena generally exist in the opposite tendencies, such examples are many. For example, the fluid-pressure differential is the cause of the fluid (including liquid and gas) flow; however, as a result of fluid flow, the pressure differential is reduced and the flow of fluid is inhibited; by zero pressure fluid is no longer flow. As another example, the balance of heat transfer - between two objects or an object in different parts of the temperature difference, it will produce heat transfer; the result of heat transfer to reduce the temperature difference, thus impeding the heat transfer; to temperature difference of zero When it reaches the balance of heat transfer.