“土壤卫生”的概念、定义、翻译、参考文献-科学参考

单词	土壤卫生
释义	土壤卫生 Encyclopedia 医学土壤卫生释 soil and health土壤卫生研究土壤性状及其卫生条件与人体健康关系的环境卫生学分支。
随便看	positive quantity positive ray function positive real axis positive real control positive real function positive real number positive real part positive real system positive recurrent point positive recurrent state positive reinforcement positive relation positive result positive root positive root system positive rotation positive school of criminology positive selection positive self-adjoint operator positive self-regard positive semi-definite positive semi-definite form positive semi definite Hermitian matrix positive semi-definite Hermitian matrix positive semi-definite kernel

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。