名词
中文翻译：心脏活动
同义词：
['cardiac rhythm', 'cardiac rhythmicity']
例句：
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1.The patient's heart rate is elevated during this exercise.
这位病人在这项运动中心率升高。
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2.The study found that the cardiac activity of the patients was significantly different from those in the control group.
研究发现，患者的心律与对照组患者明显不同。
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3. The doctor advised her to maintain a regular cardiac activity to prevent heart disease.
医生建议她保持规律的心律以防止心脏病。