“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	Hunan Science and Technology Museum Hunan Sheng Hunan silk-string singing Hunan-Style Embroidered Hibiscus and Egret Scroll Hunan Taoyuandong Guojiaji Ziran Baohuqu Hunan Theatre Hunan Tongdao Pingtan Fengyu bridge group repair project Hunan TV Phenomenon Hunan University Hunan University Library Hunan University of Chinese Medicine Hunan Valin Steel Co., Ltd. Hunan vernacular dwelling Hunan water conservancy Hunan Wuyunjie Guojiaji Ziran Baohuqu Hunan Xiangjiang Xinqu Hunan Xiangxi Chengjie Chanye Zhuanyi Shifanqu Hunan Xiaoxi Guojiaji Ziran Baohuqu Hunan Xuefeng Hu Guojia Shidi Gongyuan Hunan Yangming Shan Guojia Senlin Gongyuan Hunan Yangxi opera HunanYugu ballad Hunan Yunyang Guojia Senlin Gongyuan Hunan Zhangjiajie Guojia Senlin Gongyuan Hunanzhen Hydropower Station

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