“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	negative molecule negative multinomial distribution negative nitrogen balance negative norm negative number negative octant negative orientation negative orthant negative parallax negative part negative particular proposition negative part of a function negative part of an element negative peak negative pedal curve negative perfect correlation negative permeability materials negative permittivity materials negative phototropism negative plate negative platemaking negative Poisson's ratio material negative polarity items negative polarity machining negative polynomial distribution

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。