And then we would divide by the total weight, which is the mass of a region, as defined up there.

然后除以总质量，也就是区域的质量，正如定义所说的那样。

youdao

Defining the Vision is a task that can drag on for weeks, so to ensure that you make and track daily progress, divide the task into small and well-defined micro-increments.

定义Vision是一项可能持续数周的任务，所以请确保您每天都取得进展、并将任务划分为小型的和良好定义的微增量。

youdao

Although lack of relevant content has been frequently recognized by recent digital divide studies, it is an element inadequately explored and defined.

虽然有关内容的缺乏已经时常被最近数位辨认出分开研究，它是一种元素不充分地探究而且定义。

youdao

You cannot say to me, "Take a force, due to a spring, and see what force it applies and divide by the acceleration and get the mass, " because we haven't defined force, either.

你不能说,"给弹簧施加一个力,看看它能提供多大的力,然后除以加速度,得到质量",因为我们还没给力下一个定义

耶鲁公开课 - 基础物理课程节选