“ecological trend study”的概念、定义、翻译、参考文献-科学参考

单词	ecological trend study
释义	ecological trend study Encyclopedia 医学生态趋势研究释 ecological trend study生态趋势研究连续观察目标人群中某因素平均暴露水平的改变和某种疾病的发病率、死亡率变化的关系，了解其变动趋势；或者通过比较暴露水平变化前后疾病频率的变化情况，来判断两者间关系的群体研究。
随便看	variety of languages variety of lattices variety of Lie algebras variety of low degree variety of mineral resources variety of moduli variety of nilpotent groups variety of rings variety of semigroups variety of solvable groups variety of universal algebras variety over global fields variety show music Variety Show Painting variety theory varifocal vari-focal lens varifocal lens binocular varifold variform Varignon Varignon parallelogram Varignon's theorem Varignon theorem varimax

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