名词
中文翻译：预收缩期
同义词：
['presystole', 'presystolic']
例句：
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1.During the presystolic phase, the heart rate is typically slower than during the systolic phase.
在预收缩期，心率通常比收缩期慢。
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2.The doctor explained that the patient's condition was due to a presystolic arrhythmia.
医生解释说，患者的病情是由于预收缩性心律失常引起的。
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3. The study found that exercise can help improve blood flow and reduce presystolic pressure in the arteries.
研究发现，运动可以帮助改善血流并降低动脉的预收缩压力。