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 new technology for ammonia distillation in coke oven gas purification system and its characteristics are introduced.
  介绍了焦炉煤气净化系统蒸氨新工艺技术及其特点。
• Production, purification, properties, structural basis and applications of acid-stable xylanase were reviewed.
  综述了酸性木聚糖酶的产生、纯化和性质、结构基础及应用。
• 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。
• 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。
• 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。
• Studies on separation and purification crystallization of protein
  蛋白质分离纯化和蛋白质结晶的研究方法
• 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。
• 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；
• 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。
• 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。