本报告展示过往30天内胎心仪(fetal doppler)在美国站上的销售情况，包括销售数量，销售总额，成交率等等，并展示中国卖家在该物品的市场占有率。 升级到Terapeak 完整版。
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fetal pulsed doppler 胎儿咏冲多普勒
Fetal Heart Rate Doppler 胎心多普勒仪
Fetal Doppler series 胎心仪系列
fetal doppler echocardiography 胎儿多普勒超声心动图
Ultrasonic Doppler fetal monitor 超声多普勒胎儿监护仪
Doppler fetal heartbeat 多普勒胎心
Ultrasonic doppler fetal diagnostic equipment 胎儿多普勒超声波诊断装置
doppler fetal heart sound signal 多普勒胎心音信号
Doppler ultrasound fetal beat detector 多普勒胎儿心音检测仪
Objective: To evaluate the curative effect of normobaric oxygen therapy (NOT) for fetal tachycardias with Doppler ultrasound.
目的：应用多普勒超声评价常压氧疗法治疗胎儿心动过速的疗效。
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。
The paper presents the development and design of an ultrasonic Doppler fetal heart rate monitoring system based on DSP, and explains the realization of a algorithm for detecting fetal heart rate.
介绍了一种采用DSP 组成的胎儿心率监护仪的基本结构和工作原理，重点说明了胎儿心率算法的实现。
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