名词
中文翻译：表面杂质
同义词：
['subsurface impurity', 'surface contamination例句：1. The surface impurity on the sample is due to the presence of foreign particles.（样本表面的杂质是由于外来粒子的存在。）2. The surface impurity in the water can be removed by filtration.（水中的表面杂质可以通过过滤去除。）']
例句：
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1. The surface impurity on the sample is due to the presence of foreign particles.
样本表面的杂质是由于外来粒子的存在。
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2. The surface impurity in the water can be removed by filtration.
水中的表面杂质可以通过过滤去除。
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3. The surface impurity in the soil may affect the growth of crops.
土壤中的表面杂质可能影响作物的生长。