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

• 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。
• 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 impurity of the jade is the important behaviour of the performance.
  玉的杂质是性的重要表现。
• There is no impurity so impure as old age.
  都没有年龄大了那种不纯的杂质。
• 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。
• Used for screening the thick impurity wasted paper pulp.
  用于对废纸浆进行粗大杂质筛选。
• 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。
• Rinse under cold water to wash away the blood and impurity.
  再用冷水冲去血沫和杂质。
• Removing process of light and soft impurity that is medium and low density is introduced.
  介绍了煤中低密度轻软杂质清除的工艺过程。
• The size-dependent effect of energy and binding energy of hydrogen-like donor impurity quantum ring are calculated with B-spline technique.
  利用B样条技术计算类氢施主杂质量子环能级和束缚能的量子尺寸效应。