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¡°In your study, the effect of 4 factors (modification of attapulgite, thickness, temperature, particle size) on the concentration of ammonia nitrogen was examined. Four figures are presented, one for each examined factor. Did you consider any factor interactions?  Can the reported results be attributed to the interactions of the factors and not to the factors per se? A statistical model should be applied to examine the effect of the factors.¡±
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chenlei2008

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2Â¥: Originally posted by Сßëß¶ at 2012-12-11 08:54:45
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chenlei2008

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3Â¥: Originally posted by xiaohuaiqiu at 2012-12-11 09:39:45
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