这样得到的训练子集样本数量少，而且分布均匀。
The number of the training subset samples gained in this way is few and its distribution is symmetric...
由于本文只是个案研究，样本数量少，在一定程度上限制了研究结果的普遍性。
However, this is just a tentative case study and the small sample size limits to some extent the generalization of the findings made in the study.
本次分析所发现的证据品质极低，因为样本数少而且儿科文献的数量也很欠缺。
In this analysis, we found that the quality of evidence was very low due to small sample sizes and a paucity of paediatric literature.
本次分析所发现的证据品质极低，因为样本数少而且儿科文献的数量也很欠缺。
In this analysis, we found that the quality of evidence was very low due to small sample sizes and a paucity of paediatric literature.
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