那部分是数学的东西，即散度定理。

At that part is actually math, namely, the divergence theorem.

youdao

梯度和散度是完全不同的东西。

OK, so divergence and gradients are completely different things.

youdao

要注意的是，散度并不是只在圆心处是。

But, actually, divergence is not two just at the origin.

youdao

高低层散度都为负值中心；

Divergence takes on negative center at each level;

youdao

取一个向量场的散度。

OK, so you take the divergence of a vector field.

youdao

我们想求出它的散度。

So, now, we want to take the divergence of this.

youdao

在某种方式下它们是有联系的,这就是散度定理。

OK, so we have somehow a connection between these which is the divergence theorem.

youdao

那就是散度。

That's divergence.

youdao

得到了一类二阶散度型椭圆方程很弱解的一个正则性结果。

A regularity result of a class of second order divergence form elliptic equation was obtained.

youdao

得到了一类二阶散度型椭圆方程很弱解的一个正则性结果。

A regularity result of a class of second order divergence form elliptic equation was obtained.

youdao