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

• Robust facial expression feature extraction method is the key part of the computer aided facial expression analysis system.
  面部表情特征抽取的针对性和鲁棒性在计算机辅助面部表情自动分析系统中具有举足轻重的作用。
• 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。
• 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。
• Separation of mixtures of other metals and non-metallic metal extraction and to improve taste.
  分离其他金属和非金属混合物的金属提取和提高品位。
• The local economy is overwhelmingly dependent on oil and gas extraction
  当地经济过于依赖石油和天然气的开采。
• Using this approach, you can simplify some of the data extraction requirements for your views and supporting applications.
  使用这种方法，您可以为您的视图和支持的应用程序简化一些数据提取要求。
• It introduces the data loading, data extraction, and lookup features of the Teradata connector.
  它介绍了Teradata连接器的数据加载、数据提取和查找特性。
• 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。
• 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。
• He married a young lady of Indian extraction.
  他娶了一位年轻的印度裔女子。