理学 [重名条] 释 directed graph 有向图 二元组，其中顶点集非空，有向边集（或弧集）是由的有序对构成的子集。
＞组合数学、组合设计与图论＞图论＞释义 directed graph; digraph 有向图 directed graph 有向图†
理论计算机科学 数据结构 释文 directed graph 有向图
- Protoporcelain Kiln at Kuzhaikeng
- protoprism
- protopyramid
- protorosaurians
- protorsion
- protorsion module
- protosatellite
- protoseptum
- protosexuality
- proto-shell star
- protosolar cloud
- protosolar collapse
- protosolar contraction
- protosolar nebula
- protosporophore
- protostar
- protostele
- protostellar association
- protostellar cloud
- protostellar collapse
- protostellar core
- protostellar disk
- protostellar jet
- protostellar matter
- protostellar outflow