If every time I get the same acceleration, I'm convinced this is a reliable spring that is somehow producing the same force under the same condition.

如果每次都能得到相同的加速度,这个弹簧的可靠性就能令人信服,即它在相同的条件下能够产生相等的力

耶鲁公开课 - 基础物理课程节选

So there's two firms, just as there was before, and just as there was before--so the players are those two firms, and just as there was last time, they're producing an identical product.

现在有两个公司,就像之前一样,就像之前一样,局中人是这两个公司,就像上次一样,它们生产相同的某一产品

耶鲁公开课 - 博弈论课程节选