现在我想做的是描述一下如何测量所有的这些东西，对吧？

Now what I want to do is just describe a little bit of how do you measure all this stuff, right?

youdao

如何测量有效性将是另一个挑战。

Measuring that effectiveness will be another challenge.

youdao

紧接着我们来看看如何测量距离。

Then there is the measurement of the distance.

youdao

First, to measure what a whole population eats, how in the world could you know that?

首先,去测量人群总体吃什么,到底该如何做

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

If you don't know how to measure anything, you are doing algebra and trigonometry.

如果你不知道如何进行测量,你就是在研究代数或者三角函数了

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We'll come back to this in our example in the cardiovascular system when we're talking about the heart and we'll talk about how to measure the collective group of action potentials using EKG's.

这个我们回头再谈,等到我们在心血管系统的例子中,说到心脏时再说,我们会谈到如何通过,心电图测量群体动作电位

耶鲁公开课 - 生物医学工程探索课程节选