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

• Extraction, isolation, purification and functional properties of Tremella polysaccharides were studied in the paper.
  本实验研究了银耳多糖的提取、分离、纯化及其功能性质。
• 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。
• 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。
• 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。
• 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。
• Purification process and attentions are introduced.
  介绍了清洗的过程和注意事项。
• The purification of lac red pigment using macroporous absorption resin was investigated in this paper.
  研究大孔吸附树脂吸附精制紫胶红色素的工艺。
• 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
• 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；