The results indicate that the TPV of SBR/BR/LDPE has the exact morphological structure in which the resin is the continuous phase and crosslinked r…

研究结果证实了SBR/BR/LDPE完全硫化共混型热塑性弹性体是以塑料为连续相，交联了的橡胶颗粒为分散相的形态特征。

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So if we want to talk about the volume of that, we just talk about the surface area, which is 4 pi r squared, and we multiply that by the thickness d r.

如果我们要讨论它的体积，我们要用的是表面面积，也就是４πｒ的平方，乘以厚度ｄｒ

麻省理工公开课 - 化学原理课程节选

We're saying the probability of from the nucleus in some very thin shell that we describe by d r.

某一非常薄的壳层dr内,一个原子的概率,你想一个壳层时。

麻省理工公开课 - 化学原理课程节选

And we reasoned that these two eventually reach some kind of an equilibrium separation which we are using lowercase r to represent.

我们推导,这两个最终能达到,某种平衡分离,我们用小写的r代表。

麻省理工公开课 - 固态化学导论课程节选