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1.The electrocardiographic oscillogram is used to diagnose heart disease.
心电图波形图用于诊断心脏病。
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2. During the study, we recorded several electrocardiographic oscillograms.
在研究中，我们记录了几个心电图波形图。
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3.This technique can help us better understand the electrical activity of the heart.
这种方法可以帮助我们更好地理解心脏的电活动。