“节粮小型蛋鸡”的概念、定义、翻译、参考文献-科学参考

单词	节粮小型蛋鸡
释义	节粮小型蛋鸡 Encyclopedia 农学鸡释 grain-saving dwarf layer节粮小型蛋鸡体型矮小、饲料利用率高的蛋鸡品种。
随便看	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 positive direction positive displacement compressor positive displacement flowmeter

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。