The scientists had performed similar analyses on Earth rocks and on meteorites, so they decided to duplicate the research on the lunar samples.
科学家们已经在气球岩石和陨石上做过类似的分析，所以他们决定在月球的样品上重复这个实验。
After four times of duplicate test of 48 serum samples, the coefficient of variability of reproducibility testing is below 16%.
对相同的血清样品48份进行了4次重复试验变异系数小于16%。
The food samples were collected by using duplicate portion method and the water content of food samples were determined.
食物水来源调查采用双份饭法进行样品收集，测定食品中的水分。
The food samples were collected by using duplicate portion method and the water content of food samples were determined.
食物水来源调查采用双份饭法进行样品收集，测定食品中的水分。
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