regular covering surface

Arc-transitive cyclic regular coverings of K_5;

K_5的弧传递循环正则覆盖

The invariants which determine the graphs is discussed according to the theory of group,then the formula for the characteristic polynomials of an oriented regular covering of a finite digraph and the formula for the characteristic polynomials of an oriented total graph of an oriented regular covering is obtained.

借助于群理论讨论了图的不变量,得到了有向图的正则覆盖及其有向全图的特征多项式的表达式。

In this paper,we investigate the arc-transitive Z_n-regular coverings of K_(2,2,2),and obtain several new infinite families of 4-valent symmetric graphs as the covering graphs of K_(2,2,2) by Z_n,where n=4k or n=4k and k=2(mod 4).

本文讨论了完全三部图K_(2,2,2)的弧传递Z_n-正则覆盖,得到了几类新的4度对称图,其中n=4k或n=4k且k≡2(mod 4)。

Top window coverage criterion,user input coverage criterion and length n user input sequence coverage criterion were proposed based on the graph.

为评估图形用户界面(GUI)测试用例集的充分性,提出了基于窗口导航有向图的覆盖准则。

On Arc-transitive Z_n-regular Coverings of K_(2,2,2)

完全三部图K_（2，2，2）的弧传递Z_n-正则覆盖

s-regular Dihedral Coverings of the Heawood;

Heawood的s-正则二面体覆盖

On the S-Regular Dihedral Covering of the Three-Dimensional Hypercube Q;

立方体Q_3的s-正则二面体覆盖

Decision on Minimal Covering of Preserving Quaternary Regularly Separable Relations in Partial Four-valued Logic

P_4~*中保四元正则可离关系最小覆盖之确定

Elimination of not belonging to minimal covering of preserving quaternary regularly separable relations in partial four-valued logic

P_4~*中保四元正则可离关系非最小覆盖的剔除

The Decision on the Minimal Covering of Function Sets Preserving Ternary and Quaternary Regularly Separable Relations in Partial Four-Valued Logic;

部分四值逻辑中保三、四元正则可离关系函数集最小覆盖之判定

The Decision on the Minimal Covering of Function Sets Preserving Binary Regularly Separable Relations in Partial Four-Valued Logic;

部分四值逻辑中保二元正则可离关系函数集最小覆盖之判定

The Decision on the Minimal Covering of Regular Separable Sets in Partial Multiple-Valued Logic;

部分多值逻辑中正则可离函数集最小覆盖之判定

Gorenstein Flat Covers in an Exact Sequence;

正合列中的Gorenstein平坦覆盖

Ice sheets are broad glaciers that blanket whole regions.

冰盖则是能把整个地区覆盖起来的广阔冰川。

A thin cover of skin, called the scalp, covers most of the cranium.

而头皮，即一层薄薄的皮肤，则覆盖在头盖骨之上。

A Research on Reinforced Condition/Decision Coverage(RC/DC) Criteria

增强条件/判定覆盖(RC/DC)准则的研究

New Testing Coverage Criteria for Test Suite Reduction

一种新的测试集简化的测试覆盖准则

It is shown that there is no connected s-regular dihedral coverings of K_(3,3) whose fibre-preserving automorphism groups act arc-transitively.

现在,证明了不存在K3,3上保纤维自同构群弧传递的连通s正则二面体覆盖.

Rest your hands comfortably covering your knees. This is called the" mind in comfort and ease" posture.

双手舒适地覆盖在膝盖上，这叫“正襟危坐”。

On Extending the Coverage of Social Security and Realizing Social Justice;

扩大社会保障覆盖面 实现社会公正

An Improvement on a Lower Bound of Covering Squares with Sequence of Squares;

关于正方形序列覆盖正方形一个下界的改进

To cover with a thin protective layer.

覆盖以薄的保护层覆盖