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首页英语词典extractionextraction的意思

extraction

英 [ɪk'strækʃ(ə)n; ek-] 美[ɪk'strækʃən]

英英释义考试真题实用场景例句

近义词out drawing

n. 取出；抽出；拔出；抽出物；出身

TEM8CET6扩展词汇

词态变化

复数: extractions;

助记提示

1、ex- "out" + tract- + -ion.

英英释意

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

2. properties attributable to your ancestry;: "he comes from good origins"

3. the act of pulling out (as a tooth);: "the dentist gave her a local anesthetic prior to the extraction"

英文词源

extraction (n.): early 15c., "process of withdrawing or obtaining" (something, from something else), from Old French estraction "extraction, origin" (12c.) or directly from Medieval Latin extractionem (nominative extractio), noun of action from past participle stem of Latin extrahere "to draw out" (see extract (v.)). Meaning "that which is extracted" is from 1590s. Meaning "descent, lineage" is from late 15c.

考试真题

It is profitable to drill to depths more than 1,000 feet for oil and gas extraction, but only recently in California has it become profitable to pump water from this depth.

This means that some wells may even need to undergo desalination after extraction, thus increasing the cost.

But there are also many examples of growing wealth by trashing the environment, in rich and poor parts of the world alike, whether through unregulated mineral extraction, drastic water use for agriculture, slash-and-burn farming, or fossil-fuel-guzzling ( ' , 大量消耗) transport.

These included developing additional domestic sources (such as those on Alaska's North Slope), resuming extraction at sites that had been shut down because of cost inefficiency, capping the price that domestic producers could charge for oil, and beginning to import oil from a greater diversity of nations.

But there are also many examples of growing wealth by trashing the environment, in rich and poor parts of the world alike, whether through unregulated mineral extraction, drastic water use for agriculture, slash-and-burn farming, or fossil-fuel-guzzling t

Though all the subjects were drawn from a population of European extraction, care was taken to see that all subjects, friends and strangers, were taken from the same population.

实用场景例句

oil/mineral/coal, etc. extraction: 石油、矿物、煤等的开采

the extraction of salt from the sea: 从海水中提取盐

an American of Hungarian extraction: 匈牙利血统的美国人

Her real father was of Italian extraction...: 她的亲生父亲是意大利裔。

He married a young lady of Indian extraction.: 他娶了一位年轻的印度裔女子。

Objective : To observe the efficacy of cataract extraction with IOL implantation in children.: 目的: 观察儿童白内障摘除人工晶体植入术的疗效.

In speech analysis, it � � s very important for the extraction of speech spectral envelope.: 语音谱包络提取是语音分析中的重要内容.

Adjusting technology and operating parameters were studied when rapeseed prepressing extraction was remaked expansion extraction.: 摘要研究了将菜籽预榨浸出改造为膨化浸出的工艺设备和操作参数的调整.

This paper proposes a robust feature extraction algorithm for speech recognition.: 提出一种用于语音识别的鲁棒特征提取算法.

The extraction and stability of red pigment of vitis amurensis husk were studied.: 对山葡萄皮红色素的提取及稳定性进行了研究.

The frosting particle, the saccharomycetes butcher dissolves the product extraction, Austria seaweed extraction.: 磨砂微粒, 酵母菌胞溶产物提取物, 奥氏海藻提取物.

Extract pine nut oils pine nuts by solvent extraction, and test their physical and chemical characters.: 通过浸出法制取松子油, 并进一步测定其理化性质.

ASE extraction efficiency is equivalent to that of Soxhlet extraction.: 加速溶剂萃取的提取效率和索氏提取相当.

Extraction of oil from the wheat germ defatted wheat germ.: 脱脂肪麦胚是小麦胚提油后的产品.

The extraction of lipophilic compounds in shrimp head by organic solvent was investigated in this paper.: 研究利用有机溶剂浸提虾头中的脂溶性成分.

To determine the factors causing diplopia and ptosis after cataract extraction.: 目的:探讨白内障术后复视及上睑下垂的机制.

The technology of extraction and separation of polysaccharide from rice bran was studied.: 研究了米糠多糖的提取和分离工艺.

The method of news sentence extraction, sentence importance calculation and redundancy reducing is introduced.: 介绍了句子抽取方法、句子重要度计算、句子冗余减小方法.

The effect of ultrasonic wave on extraction rate of corn cob xylan was studied.: 本论文考察了用超声波法提取玉米芯木聚糖时各因素对提取率的影响.

Objective To establish a method for extraction and identification of the total flavonoids from garlic.: 目的为充分利用大蒜植物资源,探讨大蒜总黄酮的提取及鉴别方法.

OBJECTIVE : To optimize the extraction process of amygdalin in apricot kernel.: 目的: 研究苦杏仁中有效成分苦杏仁苷的最佳提取条件.

Simultaneous extraction of protein and polysaccharide from Porphyra yezoensis by pulsed ultrasound was studied.: 以条斑紫菜为原料,采用脉冲超声波同时提取蛋白和多糖.

Objective To provide a basis for prevention and treatment of hemorrhage after tooth extraction operation.: 目的通过分析拔牙后出血的原因,为拔牙后出血的预防和治疗提供依据.

The paper investigates the application of empirical mode decomposition ( EMD ) for signal trend extraction.: 研究经验模分解方法在信号趋势项提取中的应用.

Industry: petroleum extraction, cement, lumber, brewing, sugar, palm oil, soap.: 工业: 原油提炼, 水泥, 木材, 酿造, 糖, 棕榈油, 肥皂.

Petroleum engineers plan and manage the extraction of oil.: 石油工程师规划并管理石油的提炼。

Her real father was of Italian extraction.: 她的亲生父亲是意大利裔。