查询词典 vector field

This year's Vector adds degree numbers and cardinal half points to the compass bezel, allowing users to make more accurate readings in the field.

Vector胜任严酷的户外环境，配有高度计、气压计和电子罗盘，是一款名副其实的户外运动手表。

Some uniform formulae are established, which link the Laplacian of the position vector function to the mean curvature vector field on any submanifold in the space forms.

讨论空间型中的位置向量场，建立一组统一的公式，将子流形的平均曲率向量场与位置向量及其衍生函数的Laplacian联系在一起。

The divergence of the vector field w; it is the dot product of the vector operator with the vector w , or .

向量场w的散度；为向量算符与向量 w 的内积，或。

Building of the operation rules of curl and divergence for vector field in R 3 space;2. Analysing by mathematics and the concepts of flux and curl , we can get the differential form of gauss s theorems in electrostatic field and ampere s cycle theorem in electrostatic field.

电动力学中的内容一般是从电磁学最基本的实验规律出发，由静电场中的库仑定律得到静电场的高斯定理和环路定理，利用通量与散度、环流与旋度的关系，得到静电场的高斯定理和坏路定理的微分形式。

Especially it can find path between obstacles overlapped each other from the view of robot, which can't be realized by fuzzy plan, virtual force field or vector field histogram.

尤其是它能够发现前后重叠的障碍物之间的行走路径，这是模糊规划、虚拟势场、矢量场矩形法等方法无法实现的功能。

Those questions about " Gauss theorem" of electro - magnetic field arecleared up, and the difference between " Gauss theorem" of electro - magnetic field and" Gauss theorem"of vector field is pointed.

本文旨在澄清有关电磁学中"高斯定理"的诸多疑问，并指出它与高等数学中的"高斯定理"的区别。

A new method of gravity gradient vector field for quantitative determination of field source is described in this paper.

本文叙述了利用重力梯度矢量场确定场源的一种新方法，采用富里哀级数求和的算法。

First, structure tensor is calculated to gain vector field for characterizing local structure of image. And then, total variation partial difference equation is imposed for smoothing vector field. Based on this we use line integral convolution for guide the stroke to generate virtual special effect image with fluctuant sense. Last, mergering with original real image, cylindrical panorama with virtualized relationship controlled by time can be generated, which accomplished the character of surpass the time and space in virtual reality system.

该方法通过计算结构张量获得图像曲线走向矢量场，以此刻画图像局部结构；并采用全变分偏微分方程对曲线走向矢量场自适应滤波平滑处理；在此基础上利用线积分卷积指导画笔走向模拟生成线条波动感虚化效果图像；最后结合原始真实图像和虚化效果图像，实现了一种基于时间变量的柱面场景虚化关联算法，并为虚拟现实系统超越现实时空的需要提供了一种新思路。

Generation of stream surface and interpolation function of vector field, the volume rendering of vector field based on 3D texture mapping.

矢量场基于质量守恒的流面、插值函数的构造及基于纹理的体绘制。3。

LI Qi-He, LUO Yu-Pin, XIAO De-Yun1. Department of Automation, Tsinghua University, Beijing 100084A fast automatic image segmentation method is presented through the combination of gradient vector flow field and seeded region growing.

摘要通过将梯度向量流(Gradient vector flow， GVF)场与种子区域生长(Seeded region growing， SRG)法相结合，提出了一种快速的自动图像分割方法。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。