名词
中文翻译：外部电场
同义词：
['external electric field', 'external electromagnetic field']
例句：
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1. The electric fieldaround the charged particle is strong enough to attract it to the electrode.
带电粒子周围的电场足够强，能够将其吸引到电极上。
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2.The electric field in this region is very strong, making it difficult for people to cross.
这个区域的电场非常强，使得人们难以穿越。
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3.The electric field lines are drawn on a graph showing the distribution of electric charge.
在图表上绘制的电场线显示了电荷分布的情况。