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accidental sampling
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accidental sampling
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accidental sampling
偶遇抽样
研究者根据实际情况,为方便开展工作,选择偶然遇到的人作为调查对象,或者仅选择离得最近、最容易找到的人作为调查对象,又称便利抽样。
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radiationinduced copolymerization
radiation induced diseases
radiation-induced diseases
radiation induced genetic effect
radiation induced graft copolymerization
radiation-induced graft copolymerization
radiation induced grafting
radiation induced mutation
radiation-induced mutation breeding
radiation induced polymerization
radiation-induced polymerization
radiation induced radical polymerization
radiation-induced radical polymerization
radiation induction
radiation induction; radiation initiation
radiation-initiated crosslinking
radiation initiation
radiation injury
radiation injury of skin
radiation instrument for rock & mineral analysis and test
radiation intensity
radiation intensity measurement
radiation interception
radiation inversion
radiation ionization effect
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更新时间:2026/8/5 14:52:23