“玉牒”的概念、定义、翻译、参考文献-科学参考

单词	玉牒
释义	玉牒 Encyclopedia 管理学官府往来文书释 imperial genealogy玉牒中国古代谱牒。为记录皇族（王室）血缘谱系等内容而编制的文本。
随便看	closed convex function closed convex functional closed convex hull closed convex hypersurface closed convex set closed convex surface closed covering closed current closed curve closed-curve problem closed cycle closed cycle engine closed-cycle refrigerator closed differential closed differential field closed differential form closed differential relation closed disk closed domain closed drain system closed-easy-axis closed economy closed ecosystem closed edge sequence closed edge train

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。