impurity [ɪmˈpjʊərəti]
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基本释义
n.不洁,不纯,杂质
英英释义
when a substance is mixed with another substance and makes it dirty or lower in quality
参考例句
The oxygen reacts vigorously with the impurity in the iron. 氧气与铁中的杂质发生剧烈的化学反应。
The more general impurity acid corrosion faster. 一般来说杂质越多酸蚀速度越快。
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