“Maogang”的概念、定义、翻译、参考文献-科学参考

单词	Maogang
释义	Maogang Encyclopedia 历史学﹝南方地区﹞释 Maogang茅岗遗址中国华南地区夏商时期贝丘遗址。
随便看	closed complex plane closed composition closed cone closed contour 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

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。