“polynomial hierarchy”的概念、定义、翻译、参考文献-科学参考

单词	polynomial hierarchy
释义	polynomial hierarchy Encyclopedia 理学时间复杂性类释 polynomial hierarchy; PH多项式谱系PH 对非确定多项式时间NP类的推广。
随便看	human-machine interaction techniques human-machine interaction theoretical model Human-machine Interface human-machine interface human-machine system human-machine system ergonomic evaluation for spacecraft human metabolism Human Metabolome Database human metapenu-movirus induced infection，hMPV induced infection human metapneumovirus human microorganism human migration human monoclonal antibody human motion analysis Human Nature and Social Order human navigation human need human occupied vehicle humanoid control system humanoid intelligent control humanoid robot Human Origin human origin human osteoarchaeology human osteology

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。