通常可以表示为大量子数目情形下量子力学“减少”到经典力学和经典电磁学。
This is often expressed by saying that in case of large quantum numbers quantum mechanics "reduces" to classical mechanics and classical electromagnetism .
论述了经典电磁学的基本方程最少应有几条。
The minimum of the basic equations of classical electromagnetism is discussed.
经典电磁学的规律的数学表述，有许多种不同的结构方案，它们各有其缺点。
For the mathematical description of the basic laws of the classical electromagnetics there existed some different systems and each of them has its own shortcomings.
电荷的运动产生磁场，磁力是运动电荷在磁场中所受到的作用力，在经典电磁学理论中，磁感应强度的定义不能全面反映上述磁性起源的微观本质。
However, the definition of magnetic induction strength in traditional magnetism theory may not completely demonstrates micro nature of the origin of magnetic property.
量子力学是理论物理的一基本分支，理论物理在原子与亚原子水平上取代牛顿力学和经典电磁学。
Quantum mechanics is a fundamental branch of theoretical physics that replaces Newtonian mechanics and classical electromagnetism at the atomic and subatomic levels.
量子力学是理论物理的一基本分支，理论物理在原子与亚原子水平上取代牛顿力学和经典电磁学。
Quantum mechanics is a fundamental branch of theoretical physics that replaces Newtonian mechanics and classical electromagnetism at the atomic and subatomic levels.
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