Extrasystole before the QRS complex and the starting point of VPB between the starting point of time, known as the coupling of time.
早搏前的QRS波群的开始
性早搏的开始之
的时，称为偶联时。
Extrasystole before the QRS complex and the starting point of VPB between the starting point of time, known as the coupling of time.
早搏前的QRS波群的开始性早搏的开始之的时，称为偶联时。
声明：以上例句、词性分类均由互联网资源
成，部分未经过人工审核，其表达内容亦不代表本软件的观
；若发现问题，欢迎向我们指正。
