Salts are enriched around electriferous groups of polymer molecules in solution, which formed a salt concentration gradient.
溶液中的盐份富集在聚合物分子的带电基团附近,并形成盐浓度梯度分布。
It is found that the canonical momentum is directly proportional to the gradient of space phase.
发现正则动量与空间相的梯度成正比。
Zinnwaldite can be separated effectively by the high gradient magnetic separation from the tailing.
采用高梯度磁选可将铁锂云母从尾矿中有效分离。
Now, what's the gradient vector?
现在,梯度向量是什么呢?
为什么要说F是一个梯度场?
What is meant by social gradient?
社会梯度是什么?
Now it should be a gradient field.
那么它应该就是一个梯度场。
也就是梯度场。
It points opposite to the gradient.
指向和梯度向量相反。
What is the gradient of this function?
这个函数的梯度是什么?
This is the social gradient in health.
这就是健康方面的社会梯度。
Adding one doesn't change the gradient.
加1并不改变梯度。
它不是梯度。
So, indeed, this is not a gradient field.
因此这不是一个梯度场。
Well, you take the gradient of a function.
作出一个函数的梯度。
The normal vector will just be the gradient.
法向量就是梯度向量。
Set the gradient style to Radial Gradient .
设置渐变模式为径向(圆形)渐变 。
Well, so, what's the gradient of this function?
那么,这一函数的梯度是什么?
Yes? How do I know the direction of a gradient?
我怎样知道梯度的方向?
OK.So what is our test for gradient fields?
那么怎样验证有势场呢?
Find the gradient. Find an approximation formula.
求梯度和近似公式。
Vertical gradient in navigation bar background.
导航条背景的垂直渐变。
It is a gradient field. We need three conditions.
这是一个有势场,我们需要三个条件。
The problem is not every vector field is a gradient.
问题是,不是所有向量场都是梯度。
So, the way to do it is that we compute the gradient.
方法应该是去计算出梯度。
So how do we get a gradient background on a shell?
那么如何在shell上得到渐变的背景色呢?
But, so here's the first cool property of the gradient.
现在我们来看看梯度的第一个好性质。
The question is for which value of a is this a gradient?
问题是a取多少时,这是一个梯度场?
We have said if we have a gradient field then we have this.
如果有一个梯度场,那就能得到这个。
Well, the gradient is also a way to package partials together.
同样地,梯度也是把偏导数糅合到一起。
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