The system will derive all other tool vectors from the surface boundary.
系统将从曲面边界衍生所有其它刀具向量。
The surface boundary information was used to seek surface mesh on the common boundary;
充分利用曲面边界信息查找两曲面公共边界上的网格；
The key to modeling the vadose zone is the ability to predict an accurate surface boundary condition.
计算边界面上的流量：对渗流区域进行建模分析的关键问题是预测准确的面边界条件。
Experimental results show that this approach can effectively decompose the surface boundary of CAD models.
实验结果证明，该方法能有效地分割模型的表面区域。
Tangency is controlled by the first two control points from a surface boundary, assuming that these points lie in one line.
相切是由曲面边界的最初两个控制点控制的（假设这些点在一条线上）。
Furthermore, a method is presented to fill the gaps between paths and extend the endpoints of path trajectory to the surface boundary.
另外，对路径偏移中出现的缝隙给出了填补方法，并使偏移后的路径轨迹延伸至曲面边界。
Such a pattern of global tectonics and motion can be used as the surface boundary constraint for analysis of mantle movement and dynamics.
此全球构造格局和运动，可作为启发和约束地幔运动和动力学分析的表层边界条件。
Additionally, a mathematical manipulation is adopted to remove the second-order spacial derivatives in the body surface boundary condition.
对二阶物面边界条件采用数学手段，推导出一个没有二阶空间导数的表达式，以便于计算。
This paper is devoted to show the null exact controllability for a class of nonlocal parabolic equations with equiv-valued surface boundary condition.
本文讨论了具有等值面边界条件的抛物型方程的非局部的精确零能控性问题。
Due to the influence of the surface boundary and ground loads, the analysis for surrounding rocks of shallow tunnel is difficult by ma thematic treatment.
但对于受地表边界和地面荷载的影响，浅埋隧道围岩分析在数学处理上仍存在一定的困难。
To improve the accuracy of the numerical evaluation through the 3D finite difference method, the surface boundary conditions are added to modifying the old program.
为提高三维有限差分法的计算准确度，本文用地表边条件修改了原来的计算程序。
These are (1) introduction, at the very beginning for all models, of the surface boundary conditions, convective layers, and the contribution of electrons by metals;
一开始就统一考虑各星型的表面边界条件、对流层和金属对电子的贡献；
Although the water vapor convergence in the surface boundary layer is very important, the rainfall amount depends on the vertically integrated moisture flux convergence.
虽然边界层的水汽辐合对降水的形成很重要，但降水量的大小取决于整层水汽通量辐合的大小。
The nonlinear free surface boundary condition is considered and the hydrodynamics forces of the hydrofoil near the free surface are calculated by the submerged vortex lattice method.
考虑到非线性的自由液面边界条件，用下潜涡环栅格法求解水翼绕流问题。
The treatment of some special line segments on body surface is studied by analyzing the validity of joint surface boundary. The forming process and drawing principle of aggregate are stated.
通过分析贴合面边界的有效性，研究形体表面某些特殊线段的处理，阐迷了集合体的构形过程及画图的原则。
This model considers free surface boundary, flux boundary, horizontal flow barrier, well boundary, non-linear characteristics of soils and dynamic change of permeability coefficient with stress state.
该模型考虑了自由面边界、流量边界、基坑围护连续墙、井边界、土体非线性特性、土的渗透性随应力状态的变化。
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。
Let's say instead that you are walking on the inside of a cone following the boundary. Well, then the surface is to your left.
如果你在圆锥的内侧走的话，那么这样这个曲面就在你的左边了。
Like carbon dioxide, black carbon absorbs sunlight and infrared radiation, trapping heat in the atmosphere — including the boundary layer closest to Earth's surface.
像二氧化碳一样，黑碳吸收阳光和红外线辐射，将热量滞留在大气中-包括最接近地球表面的边界层。
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。
So if you have some region of space S and you call its boundary surface S and you let n be the normal vector that goes out of the region R.
如果存在一些区域空间,边界为曲面,定义n为指向区域R外的法向量。
The distribution of solar radiation on dam surface can be computed by the method and accurate thermal boundary conditions of the dam temperature field are obtained.
该方法能够准确计算拱坝坝面太阳辐射的不均匀分布，为温度场计算提供准确的边界条件。
A design methodology dealing with boundary and local features on the surface model is researched mainly.
研究了模型边界处理方法及复杂曲面局部特征设计方法。
The BP neural network used in the temperature characteristic of the boundary film on the screw-nut pairs surface in the wear-self-compensation system was established.
本文用双隐层BP人工神经网络建立了丝杆螺母副表面边界膜温度特性的磨损自补偿数学模型。
Quad map meshing failed because a surface appears to be narrow with many boundary edges which could not be properly paired up for meshing.
四映射网格失败是因为表面似乎狭窄许多边界边缘不能正确配对啮合。
An anisotropic damage model for concrete subjected to compressive fatigue load is developed based on continuum damage mechanics and the concept of boundary surface.
基于边界面概念和损伤力学理论，建立了混凝土受压各向异性损伤模型。
For a good bond, an adhesive must counteract the effect of surface roughness and boundary layers.
为了取得很好的粘结，粘结剂必须能克服表面粗糙和边界层的反应。
Next, in the interior of the patches, surface fitting points and cross boundary derivatives are estimated from the reference curves by constructing virtual iso-parametric curves.
其次，在曲面片内部，曲面拟合点和边界方向导数可以从参考曲线中通过构建虚拟等参线的方法得到。
Next, in the interior of the patches, surface fitting points and cross boundary derivatives are estimated from the reference curves by constructing virtual iso-parametric curves.
其次，在曲面片内部，曲面拟合点和边界方向导数可以从参考曲线中通过构建虚拟等参线的方法得到。
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