“nonnegative characteristic form”的概念、定义、翻译、参考文献-科学参考

单词	nonnegative characteristic form
释义	nonnegative characteristic form Mathematics ＞偏微分方程＞椭圆型方程＞释义 non-negative characteristic form非负特征形式 nonnegative characteristic form非负特征形式，非负特征型^†
随便看	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 geographic information system software geographic information system visualization geographic information technique geographic information visualization geographic information Web service geographic knowledge geographic landscape

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。