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

• He married a young lady of Indian extraction.
  他娶了一位年轻的印度裔女子。
• 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。
• The extraction and determination of procyanidins methods and of Cabernet Sauvignon grape seeds to explore.
  以赤霞珠葡萄籽为原料，对原花青素的提取方法和含量测定进行了探索。
• 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。
• 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。
• 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。
• 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。
• In this study, ultrasonic-assisted extraction of ursolic acid from loquat leaves was systematically investigated.
  对超声波辅助提取枇杷叶中的熊果酸进行较为系统的研究。
• 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。
• Study about the craft on the extraction of the water-soluble polysaccharide in the dried orange peel.
  对陈皮中水溶性多糖的提取工艺进行研究。