“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	skylab Skylark Skylarks on A String Sky Lee sky lens sky light sky-light skylight skylight filter skyline skyline query sky map sky measuring scale Skynet skynet Skynet Action skynet project Skynet satellite sky noise sky patrol sky phenomena sky phenomena landscape sky pond sky radiation sky ratio

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。