intra-uterine monitoring

例句：

1. 1. Thisprocedure is used to monitor the baby's heart rate during pregnancy.
   这种程序用于在怀孕期间监测胎儿的心率。
2. 2. Intra-uterine monitoring is an important toolfor diagnosing fetal distress.
   宫内监测是诊断胎儿窘迫的重要工具。
3. 3.The doctor performed intra-uterine monitoringto check the baby's oxygen levels.
   医生进行了宫内监测，以检查婴儿的氧气水平。