查询词典 intersection graph

Through studying the intersection of paraboloid of revolution and cylinder , the author concluded that the horizontal projection of the intersecting lines—, is the famous Four-order algebra curve-Perseus curve.

通过对回转抛物面与圆柱面相交的研究，得出交线的水平投影曲线——为四次代数曲线——Perseus座曲线的结论。

The karst caves could be accurately detected only when the boundary of the karst caves has a horizontal extension, as well as the interface of the karst caves is single plane and the normal direction is parallel or small angle intersection (0°~45°) with tunnel axis.

只有溶洞的边界有一定的横向延伸性，溶洞界面呈非常明显的单一平面特征，其法线方向与隧道轴线平行或以较小的角度相交(0°~45°)，溶洞才能被准确探测。

In thes paper, the general algorithm for finding the coordinates of intersection pointswhen Linear structure cutting cross the parallel curve of highway is given, which is simple inprinciple, direct in calculation process and quite suitable for computer programming.

本文论述了线状构筑物在穿过道路曲线或其平行线时，其交点坐标的解算方法。

An interference pattern of two systems of fringes has been obtained by vising two radiations in a Hilger prism interferometer A system of white bands with equal spacing which are always parallel to the refracting, edge of the prisin is the result of the intersection of the two systems of fringes.

在Hilger棱镜干涉仪中，用两辐射线，则在一干涉图形中可得两组不同方向之干涉纹；因两组不同方向之干涉纹之相交，而得一组平行之白色条纹。此种条纹恒与棱镜折射边相平行，而条纹间之间隔为相等。

This paper presents a robust algorithm for the computation of the intersection of an implicit surface and a parametric surface.

算法主要分为两部分：特征初始点（边界点，转折点和奇异点）的求取和单调段的踉踪。

Presents a grid-based intersection algorithm of parametric surface and plane, which is characterized by effectiveness and conciseness, and has been successfully implemented in the RP data processing software.

这种算法简单、实用，已成功地应用于基于CAD模型直接分层的RP数据处理软件中。

Based on parametrization representation of subdivision surfaces,precise intersection and trimming algorithms are put forward.

基于细分曲面的参数化表示，研究了细分曲面的精确求交、裁剪算法。

This paper builds modified object lattice by introducing two partial ordering relations ≤′ and C′ and a new intersection ∩′,followed by generating a concept lattice with the modified object lattice.

通过在对象集内引入两个偏序关系≤′和C′及一种新的交运算∩′来建立改进的对象格，然后通过此对象格产生概念格。

Zhongwei City, Ningxia Hui Autonomous Region is located in the Midwest, Nanjing, Gansu, Inner Mongolia, three provinces in the district at the junction point is the NT's third-largest rail hub, Paulhan,甘武, Po in the railway and is currently under construction in the railway too in this intersection .

中卫市位于宁夏回族自治区中西部，宁、甘、内蒙古三省区交界点上，是西北地区第三大铁路交通枢纽，包兰、甘武、宝中铁路和正在建设中的太中铁路在此交汇。

When a user attempt s to perform an operation on a database object that employs security features, that user′s set of permissions are based on the intersection of that user′s explicit and implicit permissions.

当用户要对使用了安全功能的数据库对象执行操作时，该用户所具有的权限基于他的显式和隐式权限的交集。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样