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bulk sampling
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agric.
混合取样
auto.
大宗抽样
busin.
大量抽样
chem.
本体釆样
commer.
散装货抽样
desert.
大量取样
interntl.trade.
成批抽样
math.
散装
货物
抽样
stat.
散装货物抽样
;
★
散料抽样
tech.
总体采样
;
总取样
;
平均样品
;
平均样本
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