“等效替换”就是从效果出发,把遇到的各种问题借助已有的经验,进行综合、分析、变换而等效成简单的易于研究的物理事物的一种思维方法.所谓等效法是为保证某种效果,特性和物理关系,在相同的前提下,将一种事物转化为另一种事物,把原来陌生的、复杂的事物转化为熟悉的,简单的事物,通过 “Equivalent Replacement ” is a way of thinking which is equivalent to a simple, easy-to-study physical thing that integrates, analyzes, and transforms the encountered problems with existing experience based on their effects. Efficacy is to ensure that a certain effect, characteristics and physical relations, under the same premise, one thing into another thing, the original strange, complex things into familiar, simple things, through