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1·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。《柯林斯英汉双解大词典》

2·Tooth extractions were never going to be enough.

而拔牙治疗对他来说是远远不够的。

3·Her teeth are so bad that she needs five extractions.

她牙齿坏得厉害，得拔掉五颗。

4·Her teeth are so bad that she needs five extractions.

她的牙太糟，得拔掉五颗。

5·Her teeth are so bad that she needs three extractions.

她牙齿坏得非常厉害，得拔掉三颗。

6·The results show that the different extractions have obvious variance.

结果表明：不同溶剂提取部分的药效有明显差异。

7·DNA was intact, but two partially-completed extractions were inconclusive.

DNA是完整的，不过两个部分完整的提取物未得到明确的结果。

8·The apparent densities and uranium extractions of ash products are determined.

测定了煤灰的松装密度和煤灰中铀浸出率。

9·The extractions of glutenin and gliadin from vital wheat gluten were investigated.

以谷朊粉为原料，提取了麦谷蛋白和麦醇溶蛋白。

10·You can do similar extractions by using BIRT (Business Intelligence and Reporting).

您可以使用BIRT(业务智能和报告)来做相似的获取工作。

(1)feature extraction特征抽取

(1)extraction method萃取法；抽出法；抽取法；抓取模式

(1)solvent extraction溶剂萃取；溶剂抽提

(1)extraction rate萃取率；提取速度

(1)oil extraction油萃取；原油开采；石油抽提

(1)information extraction信息提取，资讯撷取