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

• In this work, propolis essential oil was obtained by steam distillation extraction and supercritical CO2 extraction, respectively.
  采用水蒸气蒸馏法和超临界二氧化碳萃取法获得了蜂胶挥发油。
• 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。
• 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。
• 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。
• It may also be used for alcohol recycling and simple reflux extraction.
  并且也能回收酒精和简单的回流提取。
• He married a young lady of Indian extraction.
  他娶了一位年轻的印度裔女子。
• The extraction process of lycopene with tomato skin as raw material has been studied.
  以番茄皮为原料，对其中番茄红素的提取工艺进行了研究。
• 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。
• A new method of3D facial feature extraction based on curvature information is proposed in this paper.
  提出了一种基于曲率信息的三维人脸面部特征提取方法。
• Her real father was of Italian extraction
  她的亲生父亲是意大利裔。