“每头母猪年提供断奶仔猪数”的概念、定义、翻译、参考文献-科学参考

单词	每头母猪年提供断奶仔猪数
释义	每头母猪年提供断奶仔猪数 Encyclopedia 农学[猪生产学]释 pigs weaned per sow per year；PSY每头母猪年提供断奶仔猪数平均每头已配种母猪每年提供的断奶仔猪数量。
随便看	positive sidelight positive sign positive skewness positive solution positive species interaction positive spinor positive staining positive strain energy positive strand positive subspace positive supportive reaction positive (symmetric) operator positive symmetric operator positive system of roots positive term positive term series positive trace positive type positive uniaxial crystal positive value positive variation positive variation of a function positive variation of signed measure positive vector positive vector bundle

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。