“signed directed graph”的概念、定义、翻译、参考文献-科学参考

单词	signed directed graph
释义	signed directed graph Encyclopedia 工学符号有向图释 signed directed graph; SDG符号有向图一种描述系统内部影响关系的定性因果模型，可基于该模型进行正向、反向推理。
随便看	historical explanation historical facts historical fatalism Historical figures of water science and technology in China historical f ilm historical geographical names historical geography historical geography information system historical geomorphology historical idealism historical indeterminism historical institutionalism historical instruments Historical Journal historical knowledge Historical Lessons Historical Linguistics Historical Linguistics Research historical map historical materialism Historical Materials of Chinese Contemporay Drama historical materials of Chinese earthquakes Historical Materials of Chinese Fiction Historical Materials of Fujian Opera Historical Materials of Half-Century of Chinese Drama Movement

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