In the actual construction, must guarantee the design the weir surface curve form, is difficult.
实际施工中，要保证设计的堰面曲线形式，较为困难。
The extraction of feature lines for shoe instep surface curve was realized by joint-type measurement arm in Coordinate measurement in shoe instep.
鞋楦坐标测量采用关节式测量手臂实现鞋楦曲面特征线的提取。
The qualitative analysis and quantitative calculation about water surface curve is one of problems on non-uniform flow in water conservancy works.
水利工程中提出的非均匀流问题之一，是关于水面曲线的定性分析和定量计算。
However, the unstable flow is usually considered as stable flow in the calculation of natural river water surface curve in order to minimize the calculation work.
但在天然河道水面线计算中，为了节省工作量把不恒定流视为恒定流。
And when I am on the curve I am on the boundary of the surface, so there is a direction along the surface that is the curve and the other one is pointing into the surface.
当我在曲线上时，我是在曲面的边上的，所以一个是沿着曲面的边指，那个就是曲线的定向，另外一个就要指向曲面里面的那个方向。
The space filling Z-order curve might not be the best choice for geodetic data, given the closed nature of the earth's surface.
对于大地数据，由于地区表面具有封闭的特性，因此空间填充z顺序曲线可能不是最好的选择。
So if you had a closed surface you wouldn't know where to put your curve.
因此如果你有一个封闭的曲面，你就不知道怎么把曲线放进去了。
So, I will have some parametric curve that lives on this surface so, the question is, what's going to happen at any given time?
也就是我在此平面上有一个参数曲线，所以问题就是，在任意给定时刻会发生什么呢？
Well, I claim this curve actually bounds another surface that is orientable.
我断言这条曲线，界定了另一个可定向的曲面。
Both of these formulas basically relate work on a curve with what happens to the curl on the surface that is enclosed by this curve, that is bounded by this curve.
基本上，这两个公式把沿曲线的功，和被曲线包围的曲面上的旋度，联系起来了，曲面是以该曲线为边界的。
See, I want a surface that stops on this curve, and doesn't go beyond it.
我想要一个落在这条曲线上的曲面，但是不超过这条曲线。
Here, you integrate only over a two-dimensional surface, and here, only a one-dimensional curve.
在这儿，只是在一个二维曲面上做积分，这里是一维曲线。
Let's say that I gave you this curve bounding this surface.
给你这个曲面和这个曲线作为它的边。
Now, if a problem gives you neither the orientation of a curve nor that of the surface then it's up to you to make them up.
现在有一个问题，就是既没有给曲线也没有给平面定向，那要有你们自己去决定。
What it says on each small flat piece — it says that the line integral along say, for example, this curve is equal to the flux of a curl through this tiny piece of surface.
它可以对任一个小平面使用-，比如说对于这条曲线的线积分，等于通过这个曲面的旋度通量。
Now, if we are in space then you take flux for a surface, not for a curve.
如果是在空间中，考虑的就是曲面，而非曲线。
It might be that you will be left to choose the simplest possible surface you can think of that is somehow having this curve as its boundary.
也可以是，自己去选择，有可能的、最简单的，以该曲线为边界的曲面。
OK, so one way to find a surface that's bounded by this curve is to take what's called the Mobius strip.
这条曲线界定的曲面叫,叫做Mobius带。
PRK removes the thin surface layer of your cornea (epithelium). Your eye surgeon then USES a laser to flatten your cornea or make its curve steeper.
PRK是移除角膜薄的表层(上皮细胞)，然后眼科医生用激光使角膜平坦或弯曲。
We will use the blueprints lines as references and use curve from 2 views to create the rails for surface creation.
我们将利用蓝图线作为参考和使用曲线从第2视图来建立铁轨表面的创造。
You can use surface from curve network or patch to build the corner surface.
您可以使用曲线表面由网络或修补程序，以建立角落表面。
Split the surface with the extended curve.
斯普利特的表面与延长曲线。
Rebuild the curve with at least 6 control points. This is necessary to achieve the desired continuity when using surface from curve network or sweep 2 rails.
重建曲线至少有6个控制点。这是必要的，以实现理想的连续性当使用曲线表面从网络或扫描第2轨。
An aspherical reflector is tested and testing data are processed by the interpolation calculation, then the curve equation of the component surface shape is fitted.
对一个非球面反射镜进行了实测并对测量结果进行插值运算，进而拟合出零件面形的曲线方程。
Well, in fact, I could use any curve drawn on the level of w equals c So, I could move, really,any way I wanted on that surface.
事实上，可以使用等值面W=c上的任何曲线,可以以任何方式在等值面上移动。
Space Deformations controlled by parametric curve or surface are important methods for geometric shape edit and flexible object animation.
基于参数曲线和曲面控制的空间变形是重要的几何外形编辑和柔性物体动画实现手段。
You can check the surface shape by projecting curves to the surface and see if the projected curve shows the surface desired shape where it is projected.
您可以检查面形的投影曲线的表面，看看预测的曲线是否显示了预期想得到的表面形状。
w=c So, I have my level surface, w equals c I have a curve on that, and at some point I'm going to have a certain velocity.
画出等值面,上面有一条曲线,某点处，有某个速度。
Vector graph mesh model is a basic representation type of a body, particularly it is the most effective presentation method to representation complex body with curve and surface .
矢量图形网格模型是实体的一种基本表示形式，特别对于描述具有复杂曲线曲面的实体可以说是一种最有效的表达方法。
Project the edited curve, if necessary on the lateral surface.
项目编辑曲线，如果有必要的侧面。
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