In this paper base tangent length is put forward and lead angle calculating formula is deduced.
这篇文章提出了公法线长度并推导出超前角的计算公式。
We are replacing the graph by its tangent plane.
我们用函数的切平面来替代它的图像。
Going off on a tangent only confuses readers.
写一篇有主题突出的博文，突然转移话题只会让读者感到迷惑。
So, it doesn't look very tangent because it crosses the surface.
它看上去并不是十分地相切，因为它穿过了曲面。
That also tells us how to find tangent planes to level surfaces.
这其实也告诉我们，怎样找等值面的切平面。
It has a hat because it's a unit vector, and t because it's tangent.
这上面有一个帽子表示它是单位矢量，T表示它是切线。
So, the velocity vector is going to be always tangent to the curve.
速度向量总是与曲线相切的。
SVG can turn an image so it always faces the tangent of the line it is following.
SVG可以使图像转向，以便它总是面向它所移动方向的切线。
OK, and that's going to be the normal vector to the surface or to the tangent plane.
这就是切平面的，或者说这个曲面的法向量。
Being perpendicular to the surface means that you are perpendicular to its tangent plane.
垂直于曲面也意味着垂直于它的切平面，垂直于曲面也意味着垂直于它的切平面。
That means a magnet has to nudge the protons to enter the circular beam pipe on the tangent.
这意味着必须设置一个磁铁，以便调整质子束方向以保证沿着切向方向导入圆形粒子束管道。
Going on a tangent—as long as it’s one you know the other person will be interested in—really works.
跳出话题，只要是你知道的，对方感兴趣的话题，真的很有效果。
And, at this point, I have the tangent plane to the level surface OK, so this is tangent plane to the level.
在这点上，我们有一个切于等值面的切面，这就是等值面的切平面。
Well, that means the gradient is actually perpendicular to the tangent plane or to the surface at this point.
那意味着，梯度向量在这点上，垂直于切平面或者是等值面。
They are just flowing along the circle around and around so the flux will be zero. F now is tangent to c.
只是沿着曲线流动，所以通量为零，F与C相切。
And now, delta r should be essentially roughly equal to, well, its direction will be tangent to the trajectory.
这里，△r应该是近似等于。。。,它的方向是轨道的切线方向。
If you want strict equalities in approximations means that we replace the function by its tangent approximation.
如果你想要严格的近似等式,那就意味着我们要用切线逼近来取代原函数。
How many are tangentially sculpted because of the tools of creation (tangent-restricted solid modeling software)?
有多少设计是限于创造工具而被迫选择了正切的造型形式(比如有切线限制的实体建模软件)？
We know that f sub x and f sub y are the slopes of two tangent lines to this plane, two tangent lines to the graph.
我们知道fx和fy是,曲面上两条切线的斜率。
Say you have a minimum, well, the tangent plane at this point, at the bottom of the graph is going to be horizontal.
如果你说这是个极小值，那么这点的切平面应该是水平的。
If you remember what we did several times, well, along the circle that vector field now is tangent to the circle.
我们做过若干次了，沿着圆，向量场与圆相切。
So you should be able to calculate what the friction coefficient is using the equation tangent alpha equals mu s.
你们则需要学会,计算摩擦系数,使用μ静=tanα这个公式。
This approach has helped reduce the number of tangent discussions and keep the team focused on the specific agenda item.
这个方法有助于减少突发议题的讨论次数，使团队成员集中在特定的会议议题上。
You could easily argue that a majority of products are primarily tools of purpose, and thus Tangent is their true form language.
你可以很容易地争辩说，大部分的产品的首要目的就是完成作为工具的使命，所以正切就是真正属于它们的造型语言。
Because so far I have shown you pictures and have said see they are tangent.But why is it that they have to be tangent in general?
因为一直到现在我们都是在看图像，而且知道它们，是相切的，但是为什么在一般情况下它们都相切？
The other way to think about it, the direction in which the value doesn't change is a direction that's tangent to the level surface.
另一种方法是，函数值不变的方向是,是与等值面相切的方向。
You may even re-list previous answers. Then you might head off on a new tangent and generate 10-20 more answers along some other theme.
你可以将前边写的答案列一张表，然后回过头来看一遍，你就有可能在从中想到其他的10到20个答案。
And visually what we're accomplishing is somehow to take the hyperbola, and take a point on the hyperbola, and figure out some tangent line.
从视觉上看，我们要做的是，想办法，在这个反函数，在反函数上取一个点，设法找出切线。
We know that the gradient is perpendicular to this vector that's tangent to the level surface What about other vectors tangent to the level surface?
我们知道梯度向量垂直于这个向量，而速度向量是相切于等值面的，其他相切于等值面的向量，又如何呢？
We know that the gradient is perpendicular to this vector that's tangent to the level surface What about other vectors tangent to the level surface?
我们知道梯度向量垂直于这个向量，而速度向量是相切于等值面的，其他相切于等值面的向量，又如何呢？
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