“耕作制度”的概念、定义、翻译、参考文献-科学参考

单词	耕作制度
释义	耕作制度 Encyclopedia 农学耕作制度释 cropping system and soil management耕作制度一个地区或生产单位的作物种植制度以及与之相适应的农田养地制度的综合技术体系。
随便看	commutativity relation commutator commutator algebra commutator calculus commutator closed group commutator factor group commutator group commutator ideal commutator identity commutatorless motor commutator operation commutator product commutator quotient group commutator series commutator subgroup commute commuter’s bus and subway discounts commuting commuting elements commuting endomorphisms commuting extensions commuting mappings commuting matrices commuting operator commuting operators

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。