purification

英 [ˌpjʊərɪfɪ'keɪʃ(ə)n]

美 [ˌpjʊrɪfə'keɪʃ(ə)n]

n.  提纯; 斋戒; 清洗; 净化(作用)

复数：purifications　

TOEFL化学

BNC.15744 / COCA.15434

柯林斯词典

• VERB 使纯净；净化
  If youpurifya substance, you make it pure by removing any harmful, dirty, or inferior substances from it.
  1. I take wheat and yeast tablets daily to purify the blood...
     我每天服用干酵母片以净化血液。
  2. Only purified water is used.
     只使用纯净水。

英英释义

noun

• the act of purging of sin or guilt
  1. purification through repentance
• a ceremonial cleansing from defilement or uncleanness by the performance of appropriate rites
  Synonym:purgation
• the act of cleaning by getting rid of impurities
• the process of removing impurities (as from oil or metals or sugar etc.)
  Synonym:refiningrefinement

双语例句

• Water-soluble polysaccharide was isolated and purified from Artemisia anomal using techniques of extraction precipiation, and purification.
  对奇蒿的水溶性多糖成分进行了分离提取及成分分析。
• Purification of middle and high viscosity of waste oils from compressor was studied.
  对中、高粘度废压缩机油的净化进行了研究。
• Purification process and attentions are introduced.
  介绍了清洗的过程和注意事项。
• Author has introduced the technical features and the present technical progress of purification process of low temperature methanol washing;
  介绍了低温甲醇洗净化工艺的技术特点和近期技术进展；
• The electric control system of the equipments for converter smoke purification and gas recovery is introduced.
  介绍了转炉烟气净化及回收设备的电气控制系统。
• This paper mainly summarizes the recent progresses in the medicinal function and separation and purification technology of alkaloids.
  本文主要对药用生物碱的应用及其分离纯化技术研究进展进行综述。
• In industry organic waste gas purification and room air purification;
  工业有机废气净化和室内空气净化；
• An experimental investigation on purification of BTEX waste gas was conducted in a biofilter packed with ceramic pellets.
  以陶粒为填料，对生物过滤塔降解BTEX的行为进行了研究。
• Problems and solutions of the separation and purification process development and industrial production process of fermentation drugs;
  发酵药物分离纯化工艺开发和工业生产过程中遇到的问题和解决方法；
• Sodium chloride and hydrochloric acid are often used to regenerate spent ion exchange resins used in water purification.
  氯化钠和盐酸常用来再生水净化中用的废的离子交换树脂。