“燕国青铜器”的概念、定义、翻译、参考文献-科学参考

单词	燕国青铜器
释义	燕国青铜器 Encyclopedia 历史学铜器群∙商周释 bronzes of the Yan State燕国青铜器中国春秋、战国时期燕国的青铜器。
随便看	concave mirror concave operator concave polygon concave polyhedral angle concave polyhedron concave probability measure concave programming concaver concave sequence concave space concave surface concave-up concave-up curve concave upward concavity concavity coefficient concavity cut concavity cutting-plane method concavity downward concavo-concave concavo-convex concavo-convex lens concavo-plane conceal concealed beam

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。