“primitive agriculture”的概念、定义、翻译、参考文献-科学参考

单词	primitive agriculture
释义	primitive agriculture Encyclopedia 经济学农业释 primitive agriculture原始农业主要使用石器、骨头等简单工具来从事农事活动的农业。是农业的第一个历史阶段。
随便看	Polynesians polynier ferric sulfate polynilpotent polynilpotent group polynilpotent length polynilpotent series poly(N-isopropylacrylamide) polynome polynomial polynomial acceleration polynomial acceleration method polynomial algebra polynomial allocation polynomial approximation polynomial arithmetic polynomial bar norm polynomial bracket norm polynomial code polynomial coefficient polynomial convex hull polynomial convexity polynomial curve polynomial decision rule polynomial degree polynomial discriminant

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。