“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	Fierz fifa FIFA Club World Cup FIFA World Cup fife expectancy FIFO Fifteen Daos in Kaiyuan Period Fifteen Junior Heroes fifteen main collaterals fifteen poets in Jiang Zuo fifteen Puzzle Fifteen Road fifteen scenes in Jiazhou Fifteen Strings of Cash fifteen styles of non-dramatic songs poetry fifteen theorem Fifteenth National Congress of the Communist Party of China Fifth Column fifth five-year plan of China fifth fundamental catalog Fifth Generation Directors fifth generation language fifth generation language, 5GL fifth generation mobile communication technology Fifth Institutional Act

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