您要查找的是不是：
- 脐血流S/D值 umbilical artery blood systolic/diastolic ratio
- 值 value
- 方法：采用多普勒血流测定500 例孕妇脐动脉S/D值。 Methods Dopper bloodflow was used to measure umbilical artery S/D value in 500 pregnant.
- 脐血流 Umbilical Blood Flow
- 超值 overflow
- S／D值 S/D value
- 脐血流仪 Cord blood flow monitoring
- 默认值 Windows default
- 脐血流图 umbilical blood flow graph
- 最大值 max.
- 脐 umbilicus
- S.D system dynamics
- 不值 not worth
- 充值卡 top-up card
- 脐血流异常 Abnormal vasa umbilicalis
- 插值 interpolation
- 减值 devalue
- 脐血流检测 measurement of fetal umbilical blood flow
- 估值 guess value
- 阀值 threshold values
