“three-level prevention principle”的概念、定义、翻译、参考文献-科学参考

单词	three-level prevention principle
释义	three-level prevention principle 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	group of homotopy group of ideals group of infinite order group of inner automorphisms group of inner permutations group of integers group of invertible elements group of isometries group of isotropy group of Janko-Ree type group of left quotients group of Lie type Group of Lima group of linear operators group of linear parts group of linear transformations group of matrices group of monomial substitutions group of motions group of norms group of operators group of outer automorphism group of outer permutations group of parameters group of paths

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。