随着胎儿的成长，母体的血液循环加重。
With the growth of fetal and maternal blood circulation to increase.
当她们暴露于污染的空气之中，污染物便会进入她们的血液并再透过胎盘及脐带进入胎儿的血液循环系统中，严重影响胎儿的成长及发育。
When exposed to ambient air pollution, pollutants will enter a pregnant woman's bloodstream and pollutants can then reach the foetus' circulation through the placenta and umbilical cord.
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。
During the whole of gestation period, the nutrition of fetus is ingested by the blood circulation between maternal and fetus.
应用推荐