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物理模型的建立是为了研究物理问题的方便和探讨物理事物的本质而对研究对象所作的一种简化的描述或模拟.我们以在研究和解决物理问题时,通过对物理问题各种事实和材料
The establishment of the physical model is a simplified description or simulation of the research object to study the convenience of physical problems and to explore the nature of physical things. We use various facts and materials on physical issues when studying and solving physical problems.