“Yang Yan”的概念、定义、翻译、参考文献-科学参考

单词	Yang Yan
释义	Yang Yan Encyclopedia 历史学唐朝释 Yang Yan杨炎（727～781）中国唐代宰相，两税法的创制者。字公南。
随便看	geographic information classification and coding geographic information cloud service geographic information engineering geographic information engineering design geographic information engineering maintenance geographic information engineering management geographic information engineering supervision geographic information interoperability geographic information map geographic information metadata geographic information property geographic information public service platform geographic Information security geographic information semantics geographic information service geographic information service chain geographic information service classification geographic information service composition geographic information service description geographic information service discovery geographic information service registration geographic information service workflow geographic information sharing geographic information standard geographic information system

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。