“积雪草”的概念、定义、翻译、参考文献-科学参考

单词	积雪草
释义	积雪草 Encyclopedia 医学清热燥湿药释 asiatic pennywort; centella积雪草清热燥湿药。又名落得打。始载于《神农本草经》。伞形科植物积雪草（Centella asiatica）的干燥全草。
随便看	positive definite bi linear form positive definite bi-linear form positive definite closed form positive definite form positive definite function positive definite functional positive definite Hermitian matrix positive definite inner product axiom positive definite kernel positive definite matrix positive definiteness positive definite operator positive definite potential positive definite product positive definite quadratic form positive definite scalar product positive definite sequence positive definite solution positive definite space positive definite tensor positive definte rational fanction positive deviation positive diffeomorphism positive diffeomorphisms positive differential

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。