Here, it means we integrate from y equals x to y equals 2x, x y So, let's draw y equals x. That seems to be here.

这里指的是从y=x到y=2x作积分，取0到1，我们应该先作图看看。，x，between，zero，and，one。，So，，we，should，draw，a，picture。,的下界是y=x，The，lower，bound，for，y，is，y，equals，x。,在这画出y=x的图像。

youdao

How do we see it? So, let's draw another example.

怎么理解呢？，让我们尝试另外的例子。

youdao

I didn't draw that very well, let's do it again.

我画得不太好，我再画一遍。

youdao

Let's draw it in degrees Kelvin, instead of in degrees Celsius.

来重画一下这幅图，现在温度的单位是开尔文。

麻省理工公开课 - 热力学与动力学课程节选

if we think about electronegativity as a periodic trend we can just draw our nice periodic table here, and let's separate it into quadrants.

如果我们来思考一下电负性的周期性规律,我们可以把我们漂亮的周期表画在这，然后把它分成四个象限。

麻省理工公开课 - 化学原理课程节选

And the equation of state, pressure versus volume at constant temperature, is going to have some form, let's just draw it in there like that.

系统的态函数，恒温下压强比体积，变化曲线，就像这样。

麻省理工公开课 - 热力学与动力学课程节选