extraction

英 [ɪkˈstrækʃn]

美 [ɪkˈstrækʃn]

n.  提取; 提炼; 拔出; 开采; 有…血统; 族裔; 拔牙

复数：extractions　

CET6TEM8化学

BNC.7879 / COCA.10457

牛津词典

noun

• 提取；提炼；拔出；开采
  the act or process of removing or obtaining sth from sth else
  1. oil/mineral/coal, etc. extraction
     石油、矿物、煤等的开采
  2. the extraction of salt from the sea
     从海水中提取盐
• 有…血统；族裔
  having a particular family origin
  1. an American of Hungarian extraction
     匈牙利血统的美国人
• 拔牙
  the removal of a tooth

柯林斯词典

• N-UNCOUNT 血统;家世
  If you say, for example, that someone isofFrenchextraction, you mean that they or their family originally came from France.
  1. Her real father was of Italian extraction...
     她的亲生父亲是意大利裔。
  2. He married a young lady of Indian extraction.
     他娶了一位年轻的印度裔女子。

英英释义

noun

• the action of taking out something (especially using effort or force)
  1. the dentist gave her a local anesthetic prior to the extraction
• properties attributable to your ancestry
  1. he comes from good origins
  Synonym:origindescent
• the process of obtaining something from a mixture or compound by chemical or physical or mechanical means

双语例句

• Orthogonal experiments were used to find the optimal extraction process of andrographolide by microwave and ultrasonic assisted extraction.
  用正交法对微波和超声波辅助提取穿心莲内酯的工艺条件进行优化。
• Objective: To optimize the extraction process of total flavonoids in Anchusa italica Retiz.
  目的：研究维吾尔药牛舌草中总黄酮的最佳提取工艺。
• Extraction and aggregation RSS2.0 has only one recognized form: an document.
  提取和聚合RSS2.0只有一个可识别的形式：一个文档。
• Her real father was of Italian extraction
  她的亲生父亲是意大利裔。
• Note that in TDM, the extraction and inserting processes are distinct.
  注意，在TDM中提取和插入过程是不同的。
• Feature reduction method involves feature selection and feature extraction.
  降维的主要方法是特征选择和特征提取。
• Zidane has become the poster child for a whole generation of French-born youths of North African extraction
  齐达内已成为在法国出生、有着北非血统的年轻一代的典范。
• The research and application of microwave extraction in recent years are reviewed.
  对近几年微波萃取法的研究进展及其应用进行了综述。
• Such extraction modifies the whole cell-membrance network throughout the wool fiber.
  这种萃取改变了整个毛纤维中所有细胞膜的网状结构。
• Establish the quality standard of extraction, and stipulate corresponding quality index.
  建立了提取物的质量标准，规定了相应的质量指标。