But it was hard for the judges to decide about most other traits under the controlled conditions.

VOA: special.2009.11.24

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