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liuzhihui863

[交流] 样品选取的几个专业,求人帮忙

Sampled portion: A quantity of product constituting a unit, and having characteristics presumed to be
uniform.
Incremental sample: A quantity taken from one point in the sampled portion.
Aggregate sample: An aggregate of incremental samples taken from the same sampled portion.
Reduced sample: A representative part of the aggregate sample, obtained from the latter by a process of
reduction.
Final sample: A representative part of the reduced sample.
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gjy9814100

金虫 (正式写手)

★ ★
liuzhihui863(金币+2, 翻译EPI+1): 2010-04-12 09:56
sirljz(金币+2):谢谢交流 2010-04-12 15:07
抽样样本:一定数量的产品构成一样本单位,且其具有理论上的均一性质。
增量样品:从抽样样本的一取样处获得的一定数量样品。
混合样本:从相同性质的抽样样本处采得的增量样品的混合样本。
缩分样本:通过后面一系列缩分方法处理后得到的混合样本的具有代表性的部分。
最终样本:缩分样本的具有代表性的部分。
2楼2010-04-12 09:37:08
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liuzhihui863

谢谢

лл
3楼2010-04-12 09:56:36
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