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controlled trial
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controlled trial
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农学
对照试验
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controlled trial
对照试验
将性别、年龄、体重、生理状态与生产性能等方面尽可能一致的试验动物按随机化原则分成两组进行比较的试验。
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trace of von Neumann algebra
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trace theorem
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Tracey Moffatt
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