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

• Study on the Extraction and Purification Processing of Total Flavones in Onionskin;
  本文对洋葱皮萃取物中黄酮类化合物的成分及含量进行了分析研究。
• Isolation and purification of cichoric acid from extracts of Echinacea purpurea by polyamide column chromatography;
  目的采用聚酰胺柱色谱分离纯化紫锥菊提取物中菊苣酸。
• High-quality cellulose can be obtained from wood through pulping and subsequent purification.
  高质量纤维素可通过木头成浆和后续提纯。
• The purification and assay methods for pectic enzymes are differed with various strains.
  由于不同菌种产生的果胶酶成分复杂程度不同，分离纯化手段和分析方法也不相同。
• 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。
• If you are unsure about the purity of the water you have collected then use a water purification method.
  如果你对收集到的水的纯度不放心，可以采用一些方法对水进行净化。
• 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。
• Separation and purification of Human-like collagen I ( HCB I) and its functional properties were researched in this paper.
  本文对类人胶原蛋白I（HCBI）的分离纯化及其功能特性进行了研究。
• 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；
• Cloning, expression, purification and functional study of human EGF in E.coli.
  克隆、表达、纯化和人表皮生长因子在大肠杆菌中的功能研究。