"I think,in very general terms, in the last year or two, that the strident public criticism and denunciation rom the outside has also been a factor and has in my view has been something of a mistake,"

VOA: standard.2009.11.17

And it turned out they got it wrong by a factor of about two.

结果发现他们把注意的人数,高估了一倍。

耶鲁公开课 - 心理学导论课程节选

It goes - going through this process of amplifying divisions, every division increasing the number of cells by a factor of two and these cells becoming more differentiated around the way.

它经历了一系列扩增性的分裂过程,每次分化,细胞数目都翻一番,而在此过程中细胞分化得更成熟

耶鲁公开课 - 生物医学工程探索课程节选

n It takes discrete values, multiples of some integer n, and the multiplication factor is the ratio of the Planck constant divided by 2 pi where n takes one, two, three and so on.

这些离散的值乘以整数，乘积因子,是普朗克常数除以2π,其中n可以取1，2，3，等等。

麻省理工公开课 - 固态化学导论课程节选