查询词典 planar

We propose a method to cut and map a closed triangular mesh onto a 2D planar domain automatically.

提出一种自动地将任意闭合三角网格切开并保角映射到二维平面域的算法。

Planar discrete clothoid splines and discrete clothoid spline surfaces of Schneider and Kobbelt are just constructed by assuming that the curvature of the curves or surfaces is piecewise linearly distributed.

Schneider和Kobbelt的平面离散布状样条曲线和封闭控制网格上的离散布状样条曲面正是利用曲率逐段或逐片线性分布构造出来的。

A calibration model was established by introducing a planar target that could move freely with three collinear and known mutual location points. The calibration point coordinates in a camera coordinate system could be calculated by using the imaging information of three points and the light stripes on image plane of the camera.

引入一个可自由移动的平面靶标，靶标上只需要共线且相互位置确定的3个特征点，利用共线三点建立三点透视数学模型，根据3个特征点以及光条纹在摄像机像面的成像信息，获取了光平面上标定点在摄像机坐标系下的坐标。

D projective collineation provides an ideal mathematical tool for describing planar element correspondence in multiple views.

摘要在描述多视图的几何元素对应关系方面，2-D射影变换是一种有力工具。

Several problems on list colorings, including chromatic-choosability of graphs and Ohba's conjecture,-choosability and-edge-choosability of some planar graphs, and unique list colorability of graphs, especially for complete multipartite graphs, have been studied in this thesis.

中文摘要：本文研究列表染色的若干问题，包括图的色-可选择性和Ohba猜想、某些平面图的-可选择性和-边-可选择性，以及图的唯一列表可染性。

Yap proved that the planar graph with maximum degree △≥ 13 is equitably m—colorable for any m ≥△.

Yap和Zhang[10]证明了：最大度Δ≥13的任意平面图G，对任意整数m≥Δ，都存在均匀m-染色。

The purpose of this thesis is to apply the planar theory technology to flexography for establishing the colorific model.

本文主要研究柔版印刷中三色网点复制呈色的平面规律，建立并验证三色柔印呈色平面模型，并通过多角度分析深入研究柔版印刷的平面呈色理论。

In the compound produced by the planar device, there are even SiC whiskers found with length longer than 1 micron and diameter less than 30 nanometers.

冲击合成的SiC产物晶粒细小，而且在平面冲击波合成产物中观察到长度超过1微米、直径小于30纳米的SiC晶须。

Another new spatial 3-RPS parallel pyramid manipulator mechanism is studied. The principal screws of this mechanism under three different configurations are identified by means of the conic section and the quadric degenerating theory, respectively. The planar conics representing the relations between the pitches of the output twists and the three linear inputs are described, and the three-dimensional distribution of the axes of all the twists with the same pitch is illustrated under each of the configurations.

研究了另一种新的空间三自由度3-RPS并联角台机构，分别用二次曲线和二次曲面分解法识别该机构在三种位形下的主螺旋，绘制了其在每种位形下的输出运动螺旋的节距与输入之间的平面图以及具有相同节距的所有运动螺旋轴线在每种位形下的空间分布的立体图。

However, because of lacking high efficiency and high precision for the measurement of craters on the conical surface rock, the traditional single row drilling experiment is carried out on planar rock.

由于缺乏对锥面岩石破碎坑的有效的、高精度的测量手段，所以传统的单齿圈试验都是针对平面岩样进行的。

I urge any American living outside the country to get an early start checking his/her registration and receiving an absentee ballot, because it can take a while.

我奉劝身在国外的所有美国人早点着手核对登记表，并接收缺席选举人票，因为这得花点时间。

He is too young to join the army.

他太年轻了，还不能参军。