等效转化是常用的科学思维方法,等效是指不同的物理现象、模型、过程等在物理意义、作用效果或物理规律方面相同,等效转化思想的实质是在效果相同的情况下,将较为复杂的实际问题转化为简单的熟悉问题,以便突出主要因素,抓住它的本质,找出其中规律,以使问题得到简化而便于求解。 Equivalent transformation is a commonly used method of scientific thinking. Equivalence refers to the fact that different physical phenomena, models, processes and the like have the same meaning in physical meaning, action effect or physical law. The essence of equivalent transformation thinking is that in the same effect, The more complicated practical problems are transformed into simple familiar problems so as to highlight the main factors, grasp its essence, find out the laws therein so that the problems are simplified and the solutions are easy to solve.