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registry study; RS
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采用观察性研究方法,收集统一数据(临床或其他)评估由某种疾病、状况或暴露人群的特定结果,实现一个或多个预定科学、临床或政策目的临床研究设计方法。
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chemical mutation
chemical mutation breeding for forage plants
chemical oscillation
chemical oxidation
chemical oxygen balance
chemical oxygen demand
chemical oxygen demand (COD)
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chemical plant training simulator
chemical plating
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chemical polishing machine
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chemical pollution prevention and control law
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chemical potential of mixing perfect gas
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Chemical Process Design Handbook
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