extract vt. 1.(用力)拔出,抽出。 2.分离出,提取,蒸馏出,榨出。 3.摘出(要点),引用。 4.推断出。 5.【数学】开(方),求(根)。 6.【军事】退(弹)。 extract a tooth 拔牙。 I could extract no information from him. 我从他那里一点儿消息也打听不出来。 extract the root 开方,求根。 n. 1.抽出物;提出物,蒸馏品,精华,汁;【药学】浸膏。 2.拔萃;摘录,摘记,抄。 extract of beef =beef extract 牛肉汁。 extract of roses 玫瑰精。 make extracts 精选,摘要。 -able, -ible adj.
be from 从来; 从……来,出生在某地; 从……来,是……人; 来自……,什么地方人; 来自于; 是……的人
from from above [below] 自上[下]。 from within [without] 从内[外]。 from far and near 从远处和左近。 choose a book from among these 从这些书籍中选一册。 from before the war 自从战前。 speak from behind the door 从门后说话。 from over the sea 从海外。 from under the table 从桌下。 from of old 自古以来。 from way back 从很久以前。
She read out extracts from his letters . 她从他的信中挑了几段来念。
The material is extracted from ref 18 . 该资料摘自参考文献18。
Agar is complex polysaccharide, extracted from red algae . 琼脂是一种从红藻中提取的复杂的多糖。
Bit by bit, she extracted from him discreditable history . 她一点一点地从他嘴里引出他那不光彩的历史。
Our society demands that more and more materials be extracted from the earth . 我们的社会需要从地下开采越来越多的资源。
I ground them in the lab, and extracted from the pulp a thick brown liquid . 我在实验室中将它们磨成浆,从浆中提炼出一种棕色浓汁。
The net rate at which energy is extracted from the primary waves in this way can also be found . 也可以求得以这种方式从主要波吸取能量的净获率。
At last i managed to extract from him that mole had been seen in the wild wood last night by one of them . 我终于从他嘴里知道,昨天晚上他们有人在野树林里看见过鼹鼠。
It may be of interest to cite extracts from daily telegrams which reached me during this period from auckinleck and tedder . 从奥金莱克和特德在这个期间发给我的逐日电报中选出一些片断,这或许是有意思的事。
Methylmercury was extracted from the homogenized tissue with toluene in the presence of copper sulfate, sodium bromide and sulfuric acid . 在存在硫酸铜、溴化钠和硫酸的情况下,用甲基从组织匀浆中萃取甲基汞。