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一个毛的质量样本好混合,减少四分取样法适当的数量。
A gross quality samples were completely mixed and reduced by coning quartering to appropriate quantities.
youdao
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一个毛的质量样本好混合,减少四分取样法适当的数量。
A gross quality samples were completely mixed and reduced by coning quartering to appropriate quantities.
youdao