“三级预防原则”的概念、定义、翻译、参考文献-科学参考

单词	三级预防原则
释义	三级预防原则 Encyclopedia 工学三级预防原则释 three-level prevention principle三级预防原则疾病一级、二级、三级预防是以人群为对象，以健康为目标，以消除影响健康的危险因素为主要内容，以促进健康、保护健康、恢复健康为目的的公共卫生策略与措施。
随便看	negative lens negative life event Negative likelihood ratio negative likelihood ratio negative limit point negative limit set negative list approach to foreign investment administration negative list management negative logic negatively definite negatively definite form negatively definite kernel negatively definite matrix negatively definite quadratic form negatively graded module negatively invariant subspace negatively oriented base negatively pressurized irrigation negatively semi-definite negatively stable point negatively stable solution negative magnetoresistance negative mapping negative matrix negative meson

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。