estimated time conception
估计时间概念
以上为机器翻译结果，长、整句建议使用 人工翻译 。
They provided records of their eating habits before and during the early stages of pregnancy, and researchers analyzed the data based on estimated calorie intake at the time of conception.
她们提供怀孕前和怀孕初期饮食习惯的记录，研究人员根据妊娠期大概的卡路里摄入量的数据作出分析。
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