名词
中文翻译：脉冲发生器
同义词：
['pulse generator', 'pacemaker']
例句：
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1. The heart pacemaker is a device that helps regulate the heart's rhythm.
心脏起搏器是一种帮助调节心脏节律的设备。
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2. The patient needed to have the pacemaker replaced due to wear and tear.
由于磨损，患者需要更换起搏器。
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3. The doctor explained that the patient's pulse generator was causing him discomfort.
医生解释说，患者的脉冲发生器让他感到不适。