名词中文翻译
中文翻译：背景水平
同义词：
['baseline', 'threshold']
例句：
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1.The background level of pollutants in the air is a concern for public health.
空气中污染物的背景水平是公共卫生的一个关注点。
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2.The researchers found that the background level of methane was significantly higher than previously reported.
研究人员发现，甲烷的背景水平显著高于之前报道的水平。
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3. The background level of radiation from the nuclear reactor was below the acceptable limit.
核反应堆产生的辐射背景水平低于可接受的极限。