“渤海”的概念、定义、翻译、参考文献-科学参考

单词	渤海
释义	渤海 Encyclopedia 理学渤海释 Bo Hai渤海西太平洋海域内中国近封闭的内海。元朝以后，“渤海”一名沿用至今。旧称勃海、北海、少海。历史学民族释 Bo hai kingdom渤海 698年～926年中国东北地区以靺鞨族为主体的边疆民族政权。
随便看	principal congruence subgroup principal conjecture principal conjunctive normal form principal connex principal convergent principal coordinates of neighbour matrics principal crossed homomorphism principal curvature principal curve principal curves principal deformation principal determinant principal diagonal principal diameter principal dielectric axes principal direction principal direction of curvature principal discrete series principal disjunctive normal form principal distribution parameter principal divisor principal dual ideal principal element principal element elimination principal elliptic term

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。