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医学
危险度评价
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Rate ratio, RR
率比
在队列研究中,暴露人群和非暴露人群被追访一段时间来确定暴露因素与疾病发病的关联。队列研究的关键点是暴露先于结果的发生。
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hydride generationatomic fluorescence spectrometry
hydride generationatomic fluorescence spectrometry (HG-AFS)
hydride transfer
hydride trap in situ
hydride vapor phase epitaxy
hydride vapor phase epitaxy equipment
hydrion
hydro-abrasion
hydroabresone
hydroacoustics
hydroacoustic warfare
hydroacylation
hydroalkenylation
hydroalumination
hydroamination
hydroarylation
hydroballistics
hydro-biogeochemical processes
hydrobiology
hydrobiont
hydrobiont feed energy protein ratio
hydrobiontic alga
hydroboration
hydrobromic acid
hydrocal
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