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

• 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。
• 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。
• 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。
• Methods The effects of extraction particle size was studied by determining the gardenoside content in the extract by HPLC.
  方法以HPLC法测定不同粉碎粒度样品中栀子苷的含量为指标，比较了粉碎粒度对栀子苷提取率的影响。
• 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。
• 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。
• The proposed off-line handwritten Chinese character recognition system was composed of a feature extraction module and a recognition module.
  提出的脱机手写体汉字识别系统主要研究特征提取和分类识别两个模块。
• Extraction and peppery removal of paprika oleoresin were studied.
  对辣椒红色素的提取及除辣进行了较为详尽的研究。
• Her real father was of Italian extraction
  她的亲生父亲是意大利裔。