They found that certain cells, in particular, epithelial cells from monkey kidneys, were very effective at propagating the virus.

他们发现有些细胞,尤其是在猴肾脏的上皮细胞中,这种病毒能够有效地增殖

耶鲁公开课 - 生物医学工程探索课程节选

We've been talking about single cell or some subset of cells and propagating them so that you get a larger population of cells.

我们说到了一个细胞,或者一组细胞进行繁殖以后,你就能得到数目可观的细胞

耶鲁公开课 - 生物医学工程探索课程节选

You could imagine that you've got virus that's propagating inside your cells, making more and more virus, your immune system really responds well to that.

你可以想象,病毒在你的体细胞内繁殖,数量越来越多,你的免疫系统对此反应非常之强烈

耶鲁公开课 - 生物医学工程探索课程节选

That's a way of culturing or propagating bacteria.

这是培养繁殖细菌的一种方式

耶鲁公开课 - 生物医学工程探索课程节选

This was not a naturally occurring attenuated virus as used in smallpox, but a virus that was attenuated in the laboratory, basically by propagating it in culture and looking for mutants that were formed as you propagated this virus under different experimental conditions.

这不是在制造天花疫苗时,使用的那种天然减毒病毒,而是一种在实验室中被人工弱化的病毒,基本上是通过在细胞中培养繁殖后,从这些培养出来的病毒中挑选出,不同实验环境下的变异体

耶鲁公开课 - 生物医学工程探索课程节选