“农业环境保护发展史”的概念、定义、翻译、参考文献-科学参考

单词	农业环境保护发展史
释义	农业环境保护发展史 Encyclopedia 农学[农业环境保护总论]释 development history of agricultural environmental protection农业环境保护发展史防治土壤肥力过度衰竭、维护土地休养生息等农业环境保护的行为、制度、理论、技术及其体制机制的发展过程。
随便看	set of mappings set of matrices set of measure zero set of multiples set of multiplicity set of natural numbers set of non-uniqueness set of nowhere dense set of numbers set of objectives set of objects set of observations set of pairs set of points set of poles set of premises set of procedures for manufacturing process set of procedures' relations set of procedure’s functions set of reachable markings set of real numbers set of representatives set of second category set of sentences set of separability

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。