名词
中文翻译：电磁场
同义词：
['EM radiation', 'electromagnetic field']
例句：
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1. The EMF levels in the area are high due to the nearby power lines.
由于附近的电线，该区域的电磁场水平很高。
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2. The study of EMFs has led to new discoveries in materials science.
对电磁场的研究已经导致了材料科学中的新发现。
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3. The EMF sensor is used to detect the presence of dangerous chemicals in the air.
电磁场传感器用于检测空气中危险化学物质的存在。