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物理概念反应物理现象的本质,只有抓住现象的本质才能分析各有关现象的内在联系,才能掌握物理基本定理、基本原理。
The concept of physics reflects the essence of physical phenomena. Only by grasping the essence of phenomena can we analyze the intrinsic relations of the related phenomena and master the basic theorems and principles of physics.