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

• 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
• Experimental study on the air cleaner's purification effect for indoor formaldehyde, ammonia and TVOC
  空气净化器对室内甲醛、氨气和tvoc净化效果的实验研究
• 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。
• 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。
• 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。
• 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。
• 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。
• 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。