Maxwell showed that light was a vibration in the electromagnetic field, and that it travelled at a constant speed, c, in a vacuum.
马克思·威尔指出光是种电磁波，其在真空中的传播速度是个常数c。
Based on the classical electromagnetic theory of Maxwell, the expression of the relative dielectric constant and relative magnetic permeability is deduced also;
同时从经典麦克斯韦电磁场理论出发，推导出复相对介电系数和复相对导磁率的表达式；
Based on the classical electromagnetic theory of Maxwell, the expression of the relative dielectric constant and relative magnetic permeability is deduced also;
同时从经典麦克斯韦电磁场理论出发，推导出复相对介电系数和复相对导磁率的表达式；
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