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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
    1. the act of cleaning by getting rid of impurities
      1. the process of removing impurities (as from oil or metals or sugar etc.)
          Synonym:refiningrefinement

        双语例句

        • 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。
        • 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
        • 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。
        • 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。
        • 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。
        • 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。
        • 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。
        • 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。
        • 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。