中文翻译与英英解释

n.
1.抽出，拔出。
2.【化学】提取(法)；萃取(法)；回收物，提出物；精炼。
3.精选，摘要。
4.血统，家世，出身。
5.【数学】开方，求根。
短语和例子
spirit of the first extraction 原汁酒。 a man of foreign extraction 外国(血统的)人。 extractions from a book 一本书的内容摘录。 an extraction of 81 percent 百分之八十一的出粉率，八一粉。 the extraction of root 【数学】开方法，求根法。

the action of taking out something (especially using effort or force); "the dentist gave her a local anesthetic prior to the extraction"

properties attributable to your ancestry; "he comes from good origins"
同义词：origin, descent,

the process of obtaining something from a mixture or compound by chemical or physical or mechanical means

例句与用法

They are by-products from the oil extraction .
它们是提炼石油时产生的副产品。

He needs two extractions .
他需要拔掉两颗牙齿。

Men said he was an english cavalier, and of no high extraction .
人家说他是英国骑士，门弟并不高。

Germinability of pollen largely depends on the extraction procedure .
花粉的发芽力大部分取决提取的过程。

Absorption studies were conducted on the residue after each extraction .
吸附研究是在每一个提取后的残渣上进行的。

She came from a family of irish extraction but not catholic .
她出身于一个爱尔兰血统的家庭，不过并不是信天主教的。

The length of time of the extraction and the particle size are both pertinent .
提取的持续时间和微粒的大小都恰到好处。

Solvent extraction is accomplished by the addition of an immiscible solvent to the wastewater .
溶剂萃取是向废水中投加不溶于水的溶剂。

Such extraction modifies the whole cell-membrance network throughout the wool fiber .
这种萃取改变了整个毛纤维中所有细胞膜的网状结构。

It is difficult to define the detection limits obtained by chelation-solvent extraction .
确定螯合--溶剂萃取法所得到的检测限颇为困难。