例句與造句

1. In any topological space, if " x " d " " y " then there is a undirected path between the corresponding vertices of ?.
2. Otherwise, the ordered pair is called " weakly connected " if an undirected path leads from " x " to " y " after replacing all of its directed edges with undirected edges.
3. This is an orientation with the property that, for every pair of vertices and in, the number of pairwise edge-disjoint directed paths from to in the resulting directed graph is at least \ lfloor \ frac { k } { 2 } \ rfloor, where is the maximum number of paths in a set of edge-disjoint undirected paths from to.
4. It's difficult to find undirected path in a sentence. 用undirected path造句挺難的