Congenital rachitic call again fetal period rachitic, namely of the child rachitic had happened between gestation.

先天性佝偻病又称为胎儿期佝偻病, 即孩子的佝偻病在妊娠期间就已经发生.

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The birth weight of the piglets is a result of development of especially the fetal period.

出生重更多的是胚胎时期发育的结果.

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