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

• 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。
• 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；
• Methods: Wash inclusion body effectivity, use Hydrophobic Interaction Chromatography to carry on the purification.
  方法：对包涵体进行有效洗涤，采用疏水层析进行纯化。
• 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；
• Study on purification and characterization of plant-esterase for detecting the residues of organophosphate pesticides;
  本研究基于酶法分析中的酶抑制原理，对农药残留检测用植物酯酶制剂进行研究。
• In this paper, the magnetite purification and two methods for obtaining ultrafine magnetite powder were introduced.
  介绍了磁铁矿的选矿提纯方法和获得磁铁矿超细粉的两种途径。
• 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。
• 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 process technology, ACE inhibitory activity and purification of ACE inhibitory peptide of vinegar-egg were studied.
  本实验对醋蛋的浸泡工艺、ACE抑制活性和ACE抑制肽的分离进行了初步研究。
• The purification of lac red pigment using macroporous absorption resin was investigated in this paper.
  研究大孔吸附树脂吸附精制紫胶红色素的工艺。