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

• A simple purification method for crude tea saponin was described.
  对粗茶皂素的提取纯化工艺进行了研究。
• 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
• The purification conditions of photosynthetic bacteria on farming water were studied.
  本文报道了光合细菌净化水质条件的研究结果。
• 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。
• 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；
• 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。
• 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
• 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。
• 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。
• 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。