| 1. | Polyhedra with seven vertices are rare .
具有七个顶点的多面体是稀少的。 |
| 2. | The condensation of d is a directed graph with m vertices .
D的凝聚图是指一个有m个顶点的有向图。 |
| 3. | A star is defined as the set of edges incident to a vertex .
一个星形定义为关联于某个顶点的边的集合。 |
| 4. | Up to isomorphism, there is just one complete graph on vertices .
在同构意义下，几个顶点的完全图只有一个。 |
| 5. | Establish the adjacency relation among all pairs of components which share a pair of pseudovertices .
在所有共享一对伪顶点的二个分量间建立相邻关系。 |
| 6. | The algebraic sum of the through variables associated with the edges incident to any vertex is zero .
关联于任一顶点的各边所附带的流通变量的代数和为零。 |
| 7. | A configuration is a connected cluster of vertices of a plane graph together with the degrees of the vertices .
一个构形是面图的一连串连通的顶点与这些顶点的度。 |
| 8. | If the edges are ordered pairs of vertices then we get the notions of a directed graph and directed multigraph .
如果边都是顶点的有序对，则得到有向图和有向重图的概念。 |
| 9. | These shortest paths can be easily determined by keeping track of the predecessors of vertices in the tree .
只要在树中沿着先行顶点的轨迹引伸，这些最短路径还是容易确定的。 |
| 10. | Some features of boundary vertices of coronoid systems
冠状系统的边界顶点的特征 |
