• 1. fetus period: 胎儿期
• 2. period of fetus: 胎儿期

• 1.During the whole of gestation period, the nutrition of fetus is ingested by the blood circulation between maternal and fetus.
  在整个妊娠期间，胎儿的营养摄入主要是通过母子血液循环获得的。
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• 2.It was showed that the neuron density during the growing period of human fetus decreased as the illinear form, especially 6 month.
  结果显示：锥体层神经细胞密度随胎龄增长呈非直线型下降，尤以6月龄组下降最为明显；
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• 3.The position of the fetus are exceptionally many when the gestation period inspection was discovered.
  胎位异常多在孕期检查时被发现。
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