extraction
英 [ɪkˈstrækʃən]
[NOUN]
1. [U 不可数名词] 提炼 , 提取
The extraction of a substance is the act of obtaining it from something else, for example, by using industrial or chemical processes.
双语例句
例：Petroleum engineers plan and manage the extraction of oil.
石油工程师们规划并管理石油的提炼。
例：Several mineral extraction companies operate on the lake.
几家采矿公司在湖上作业。
2. [C, U 有变体名词] 拔牙
The extraction of a tooth is the act of removing it from a person's mouth.
双语例句
例：In those days, dentistry was basic. Extractions were carried out without anaesthetic.
那时牙科学刚起步，拔牙是在没有麻药的情况下进行的。
NOUN. 名词
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