“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	acousto-optic spectrograph acousto-optic tensor acousto optic waveguide device acousto-optic waveguide device a covered corridor around the hall A Cowrie of Hope ACP ACPF ACPI ACPL A.C.potentiometer AC power standard AC power transmission acquaintance society acquired arteriovenous fistula acquired behavior of livestock acquired character acquired coagulation disorder acquired coagulation factor deficiency acquired dyslexia acquired essence acquired heart disease acquired immune deficiency syndrome, AIDS acquired immune tolerance acquired immunodeficiency disease

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