cost of sample
... cost of sales 硝售成本; 销货成本; 销售费用 cost of sample 样本费 cost of service 服务成本 ...
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免费样本 Free Sample ; Sample free of charge ; echantillon gratuit
费样本期刊 Free Sample Issue
但是我对情况也略知一二，我知道每个样本调查费都在增加。
But I do know a few things. I know that the cost of every U. s. sample survey is going up.
youdao
对指数分布总体，给出了异常值检验费歇型统计量的大样本近似分布。
The approximate distribution of Fisher's statistics for exponential sample is given.
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