pre-sparking

例句：

1. 1. The heart's electrical system is sensitive to pre-sparking.
   心脏的电系统对预激很敏感。
2. 2.During the procedure, the doctor used a special device to prevent pre-sparking.
   在手术过程中，医生使用了一种特殊的设备来防止预激。
3. 3.The patient was diagnosed with an irregular heartbeat due to pre-sparking.
   患者被诊断出由于预激而出现了不规则的心律。