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？
It points opposite to the gradient.
指向和梯度向量相反。
Adding one doesn't change the gradient.
加1并不改变梯度。
Set the gradient style to Radial Gradient .
设置渐变模式为径向(圆形)渐变 。
Vertical gradient in navigation bar background.
导航条背景的垂直渐变。
The gradient vector would be going perpendicular to the level.
梯度向量应该垂直于等值线。
Faint diagonal gradient over the "CJ" logo in the log-in box.
登陆框背景的“CJ”标志上方模糊的斜向渐变。
So, if you have a gradient field, it's what's called conservative.
如果有一个梯度场，它也是一个保守场。
The gradient effect here makes the reflection seem to fade away.
这里的渐变效果使倒影看起来似乎正在淡出。
Notice the gradient backing of the button components in Figure 2.
请注意图2中按钮组件的渐变背景。
If I fix a point, then the gradient vector at that point is given to me.
确定一点，那么对我来说，这点的梯度向量就是确定的。
You use this downward pointing triangle as the notation for the gradient.
用▽表示,这就是梯度的符号。
That means that the gradient of f is perpendicular to the level set of g.
也就是说f的梯度向量,应该与g的水平集垂直。
The question is for which value of a is this going to be possibly a gradient?
问题是a为多少时,这才可能是个梯度场？
Horizontal, linear gradient from black to medium gray at the top of the page.
从黑色到灰色的水平线性渐变，位于页面顶部。
When there's a smaller gradient, air is often able to flow down from the Arctic.
而当它们之间只有一个较小的气压梯度时，风就能够经常从北极区向南吹。
But they won't be the level curves of a function for which this is the gradient.
但它们不一定是，某个以该向量场为梯度的函数的等值线。
One is to say that the vector field is a gradient in a certain region of a plane.
一个是向量场,在给定平面区域内是梯度场。
Note that this is a radial gradient, whereas earlier you saw a linear gradient.
注意，这是一个放射状渐变，而此前您看到的是一个线性渐变。
So, we said when we have a function of two variables, we have the gradient vector.
我们说，当一个二元函数存在时，就有梯度向量。
So now, let's go back to the gradient and see what this tells us about the gradient.
所以现在我们再回头看看梯度，看看它告诉了我们什么。
If you take the gradient of this, you should get again this vector field over there.
对这个函数取梯度，你应该又得到这个向量场。
Different theories predict how this metallicity gradient changes over billions of years.
已有几种不同的理论对金属丰度梯度在亿万年间如何变化作了推测。
And that told us that the flow is proportional to a negative gradient of a concentration.
这告诉我们，流动是和浓度的负梯度成比例的。
And, of course, it is not a coincidence because this vector field is a gradient field.
当然这并非巧合，因为这个向量场是有势场。
And we have learned how to package partial derivatives into a vector, the gradient vector.
我们也知道了，如何将各个偏导组合成一个梯度向量。
And we have learned how to package partial derivatives into a vector, the gradient vector.
我们也知道了，如何将各个偏导组合成一个梯度向量。
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