digraph 是什么意思

	n. (读作一音的)复合字母〔如 ch, ea〕。

two successive letters (especially two letters used to represent a single sound: `sh'' in `shoe'')
同义词：digram,

	1.	Digraphs have a simple pictorial representation . 有向图有简单的图形表示。
	2.	We shall abbreviate "directed graph" to digraph . 我们将把“有方向的图”简称为方向图。
	3.	A digraph d is unilateral . 图D是单连的。
	4.	Some results on the existence of integral digraphs 关于有向整谱图的若干存在性问题
	5.	These include " digraphs " and additional reserved words 包括“双连符”和额外的保留词。
	6.	On the gracefulness of the union of mutually non - intersecting digraphs n 3之并的优美性
	7.	Exponents of a class of two - colored digraphs 一类双色有向图的指数
	8.	Box counting dimension of functional digraph in 3 dimensional space 三维空间中函数图像的计盒维数
	9.	Some algebraic properties of the digraph 有向图的一些代数性质
	10.	The upper bounds of the spectral radius of digraphs in term of average 2 - degrees 有向图的谱半径的二次度形式的上界

digraph是什么意思