| 释义 |
electromagnetic waven.（名词）- A wave of energy having a frequency within the electromagnetic spectrum and propagated as a periodic disturbance of the electromagnetic field when an electric charge oscillates or accelerates.电磁波：频率在电磁波频谱内的一种能量波，当电荷振荡或加速时做为电磁场的周期性扰动而传播
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