impurity

英 [ɪmˈpjʊərəti]

美 [ɪmˈpjʊrəti]

n.  杂质; 肮脏; 不纯; 淫秽

复数：impurities　

CET6TOEFL化学

BNC.15794 / COCA.17928

牛津词典

noun

• 杂质
  a substance that is present in small amounts in another substance, making it dirty or of poor quality
  1. A filter will remove most impurities found in water.
     过滤器会滤掉水中的大部分杂质。
• 肮脏；不纯；淫秽
  the state of being dirty or not pure

柯林斯词典

• N-COUNT 杂质;不纯物质
  Impuritiesare substances that are present in small quantities in another substance and make it dirty or of an unacceptable quality.
  1. The air in the factory is filtered to remove impurities.
     工厂里的空气要经过过滤，以清除其中的杂质。
• 淫乱;不贞
  Impurityis the state of being no longer pure, especially sexually pure.

英英释义

noun

• the condition of being impure
  Synonym:impureness
• worthless or dangerous material that should be removed
  1. there were impurities in the water
  Synonym:dross

双语例句

• Some impurity as well as bromine was brought by solid matter that smuggled with foam fog in flash steam.
  闪蒸气中雾沫夹带的固体物引入了溴等杂质。
• The physical properties of wheat grain bulk with different impurity types and contents were analyzed.
  对含有不同杂质类型和含量的小麦粮堆物理特性指标进行了测定。
• Microstructure investigation showed that the zirconia and impurity phases were dispersed in the BN layer matrix.
  显微结构分析表明，氧化锆和杂质相镶嵌在氮化硼层状基质中。
• This gaseous impurity is able to bring about metal corrosion and contaminating.
  这些气相杂质的存在会造成金属材料腐蚀，并污染环境。
• Vitriolic impurity is contained normally in the sewage that vitriolic factory discharges.
  硫酸厂排放的污水中通常含有硫酸杂质。
• The oxygen react 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 air in the factory is filtered to remove impurities.
  工厂里的空气要经过过滤，以清除其中的杂质。
• The impurity profile is normally dependent upon the production process and origin of the API.
  杂质概况一般与原料药的生产工艺和起源有关。
• There is an impurity in your product.
  你的产品中有杂质。
• The impurity of the jade is the important behaviour of the performance.
  玉的杂质是性的重要表现。