Now we will introduce what we call the average velocity.

下面我们引入，平均速度的概念。

youdao

And now we will look at the average velocity in a somewhat different way.

下面考虑下平均速度，方法就有些不同了。

youdao

Notice that I haven't told you x It's completely unimportant for the average velocity.

这里请注意，我并没有说明,轴的原点在哪里。，where，I，choose，my，zero，on，my，x，axis。,因为它对平均速度而言,并不重要。

youdao

So, the average velocity may not tell you the whole story.

平均速度可能无法描述整个运动过程

耶鲁公开课 - 基础物理课程节选

So it's useful to have the average velocity.

平均速度还是很有用的

耶鲁公开课 - 基础物理课程节选

I would expect, whether you're a Red Sox fan or not, you to be able to look at a list of different pitchers and their average velocity for their fastball, and tell me who has the longest or the shortest wavelength.

无论你是否是一个红袜队球迷，我预想你会看到一系列,不同的投手和他们,投出快球的平均速度，告诉我谁有最长的,或者最短的波长。

麻省理工公开课 - 化学原理课程节选

The average two-wheel-drive car carries four such parts, known as constant-velocity joint (CVJ) halfshafts.

FORBES: Beefing up the rump