格鲁温伯格女士最终被确定为是“重孕”。
Mrs Grovenburg's pregnancy was eventually identified as "superfetation".
格鲁温伯格女士最终被确定为是“重孕”，就是说她在不同的时间段怀上了两个孩子，但是孩子在同一天出生了，从医学上说，他们并不是双胞胎。
Mrs Grovenburg's pregnancy was eventually identified as "superfetation", meaning two babies are conceived at different times, born on the same day yet - medically speaking - are not considered twins.
传统的孕周和胎重估计方法利用经验公式进行，结果离散度较大。
Several experiential formulae are used in the traditional method to estimate the gestational week and fetal weight. However, the results are dispersed.
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