对动脉瘤动脉的正常段进行结扎。

The vessel involved by aneurysm were ligated in its healthy part.

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四种土壤的收缩特征曲线可划分为结构段和正常段，且可用直线模型来描述。

The shrinking-swelling curves for four soils with different textures can be divided into structural portion and normal portion, and be described well by the Straight Line Model.

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结果层粘连蛋白及其基因在狭窄段表达明显增高，从狭窄段到正常段逐渐减低；

The expression of RET gene, however, showed a significant decrease in aganglionic segment when compared to the normal segment.

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After a while, they don't do the same thing.

过一段时间,它们就不能正常工作了

耶鲁公开课 - 基础物理课程节选

In a normal cell DNA that DNA in the normal cell - this DNA gets cut by the restriction enzyme, so the sickle gene ends up - so that hemoglobin gene ends up in two pieces.

一个正常细胞的DNA,正常细胞里的DNA,会被限制酶所剪切,因此镰状血红蛋白基因--,不对,是正常血红蛋白基因被切成两段

耶鲁公开课 - 生物医学工程探索课程节选