But this view out the window,

但窗外的景色

So you can find it?

这样说你可以找到

without reabsorbing a lot of the waste products you don't need like urea;

太多的废物 例如你不需要的尿素

there's some interplay between the activities

发生在不同小管部位的生理活动之间

is we did energy-momentum calculation.

计算出能量-动量转换

in the center of mass frame.

可以在 质心系里轻松达成

and played it all the way down an octave below it

然后向下演奏一个八度的音

of the pitch right next to it,

这个紧挨着它的音

hang it on the wall.

把物体挂在墙上

and you should think about where will the center of mass be

想一想如果我把物体挂在墙上

Nephrons are just a series of tubes

肾单位是一连串的导管

We'll see in the next slide that nephrons look slightly different,

在下一个幻灯片中肾单元有些许不同