单词：digraphs
(digraph 的复数) n. 二合字母, 连字
[计] 有向图
[计] 有向图
plural of digraph
n. two successive letters (especially two letters used to represent a single sound: `sh' in `shoe')
n. two successive letters (especially two letters used to represent a single sound: `sh' in `shoe')
digraphs的用法和样例：
例句
- Digraphs have a simple pictorial representation.有向图有简单的图形表示。
- Using matrix theory, we present a sharp upper bound on the spectral radius of digraphs and strongly connected diagraphs.摘要利用矩阵理论，给出了简单有向图的谱半径可达上界和强连通有向图的谱半径上界。