While he acknowledges that there is much to be learned from alternative research methods like cell culture a process by which cells are taken from a living organism and grown under controlled conditions VandeBerg says they have learned a lot more from research on chimpanzees.

VOA: standard.2010.02.16

So, how could you produce--the question is, how could you produce large quantities of this- of this microorganism, this virus vaccinia under controlled conditions?

问题是该怎么进行生产,你怎么大批量生产这种微生物,即在可控条件下生产牛痘病毒

耶鲁公开课 - 生物医学工程探索课程节选

One of the purposes of cell culture is to make many, many more cells under controlled conditions where I can understand what those cells are.

细胞培养的一个目的就是,在可控的环境下生成许许多多的细胞,从而让我能够研究这些细胞

耶鲁公开课 - 生物医学工程探索课程节选