placentogram

例句：

1. 1. The placentalsection revealed a significant amount of amniotic fluid.
   胎盘剖面显示了大量的羊水。
2. 2.The placental biopsy showedsigns of infection in the fetus.
   胎盘活检显示胎儿有感染的迹象。
3. 3. The placental section was used to study the developmentof the fetus during pregnancy.
   胎盘剖面用于研究妊娠期间胎儿的发展。