“中国古代养羊史”的概念、定义、翻译、参考文献-科学参考

单词	中国古代养羊史
释义	中国古代养羊史 Encyclopedia 管理学中国畜牧业史释 history of sheep and goat raising in ancient China中国古代养羊史中国古代将羊驯化为家畜，养殖选育优良品种、获取选种、饲养和管理技术的发展过程。
随便看	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 closed economy closed ecosystem

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。