extraction
[ɪkˈstrækʃən]
n.
取出，抽出;
血统，家世，出身;
[化]提取（法），萃取（法），回收物，提出物，精炼;
[数]开方，求根;
例句:
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Petroleum engineers plan and manage the extraction of oil.
石油工程师规划并管理石油的提炼。
来自柯林斯例句
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Her real father was of Italian extraction.
她的亲生父亲是意大利裔。
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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。
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Why are there no sea water uranium extraction plants?
来自SA
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Cons Lorry traffic from the nearby gravel extraction plant.
来自THETIMES
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Or those in other carbon based extraction industries?
来自SA