The fetal heart monitor shows that the stifling rate of late-deceleration is higher.

胎心监护显示晚期减速新生儿窒息率高。

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B. External fetal monitoring. The FHR is measured by focusing an ultrasound beam on the fetal heart. The fetal monitor interprets Doppler signals.

外监护。通过集中超声波束于胎儿心脏来描记胎心率，胎儿监护翻译多普勒信号。

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This paper introduces a new type of portable and no invasive fetal heart rate monitor which based on 32-bit ARM embedded microprocessor LPC2290 and MEMS acceleration transducer.

介绍一种基于32位ARM嵌入式微处理器LPC 2290和MEMS微加速度传感器的一种便携、无创的胎儿心率检测仪。

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But doctors also remember the fetal heart monitor, introduced with great enthusiasm in the 1970s as a way to cut down on birth injuries by alerting doctors to fetal distress in time to remove the baby via Caesarean section.

FORBES: Defensive Medicine