Garvin无法说出在美国有多少家医院安装了胎儿血氧监护仪。
Garvin could not say how many fetal oxygen machines are installed in U. s. hospitals.
胎儿血氧监护仪与传统的电子监护仪(测胎儿心率，以确定胎儿是否处于应激或缺氧状态)起使用。
Fetal oxygen machines are designed to be used with traditional electronic monitors, which track heart rate to determine whether the fetus is experiencing stress or lacking oxygen.
胎儿血氧监护仪与传统的电子监护仪(测胎儿心率，以确定胎儿是否处于应激或缺氧状态)起使用。
Fetal oxygen machines are designed to be used with traditional electronic monitors, which track heart rate to determine whether the fetus is experiencing stress or lacking oxygen.
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