Currently hospital based ultrasound is used to record babies'heart rates during pregnancy.

现今医院使用的超声用来记录妊娠期间胎儿的心律.

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Methods Compare heart rates, blood pressures and symptoms and post therapy and observe efficacy.

方法采用治疗前后心率 、 血压及症状的对比,观察疗效.

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By attaching electrodes to their facial muscles and monitoring their heart rates, they measured their responses.

通过接触他们面部肌肉的电极和测量它们的心跳频率, 两位研究者测试了他们(对广告)的反应.

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Resting heart rates can also be affected by ensuing illness, fatigue and overtraining.

静态心率还会受到疾病, 疲劳和训练过量的影响.

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