If we were moving on the tangent plane, this would be an actual equality.
如果我们在切平面上移动，这将会是一个真正的等式。
The conversation went off on a tangent.
谈话突然偏离了正题。
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。
It is really the tangent plane.
它确实就是切平面。
That is how we get the tangent plane.
这样我们就得到了切平面。
That's the equation of a tangent plane.
这就是切平面的方程。
And that line is tangent to the surface.
一条与曲面相切的直线。
The direction is tangent to the trajectory.
方向就是轨道的切线方向。
That's one way to define the tangent plane.
这是定义切平面的方法。
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。
Then, if I choose any vector in that tangent plane.
那么如果我选择了任何位于切平面的向量。
It's going to be tangent to the level surface, right?
它是与等值面相切的，对不对？
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。
Let's think about the tangent plane with regard to a function f.
我们来考虑，关于函数f的一个切平面。
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。
But, actually, that is not true because here the circle is tangent to the axis.
但实际上，这是不对的，因为这个圆与这个坐标轴相切。
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。
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。
The first of these integrals is seen to be a logarithmic form and the second the inverse tangent form.
这些积分中的第一个被看成是对数形式，而第二个被看成是反正切形式。
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。
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。
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。
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。
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。
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。
应用推荐