由此我得到，摩擦力的大小。

So I know what the frictional force is given by this result.

youdao

这是力的大小。

So, that's the size, that's the magnitude of the force.

youdao

另外，测量创造力的大小本身也是非常困难的。

It's also extremely difficult to measure creativity.

youdao

I draw a graph here of the amount by which I pull the spring versus the force it exerts.

我在这里画个图,纵轴是弹簧的拉伸量,横轴是力的大小

耶鲁公开课 - 基础物理课程节选

you're looking for that equal and opposite forces acting at two ends of the rope.

你就得求出作用在绳子两端的,大小相等方向相反的力

耶鲁公开课 - 基础物理课程节选

Therefore, what we have done now is, we can take all kinds of springs and we can calibrate the force they will exert under various conditions.

因此,我们现在能做到的就是,我们能处理各种各样的弹簧,我们能测出它们在不同的情况下,产生的力的大小

耶鲁公开课 - 基础物理课程节选