A 1911 electrocardiograph took five people to operate it.

1911年的心需要五个人来操作。

After introducing his electrocardiograph, he went on to describe how various heart disorders appear on an ECG, and corresponded regularly with British physician Thomas Lewis, who worked on the device's clinical application.

在推出他的心后，他继续阐述了各种心脏疾病在心上的表现，并与致力于该设备临床应用的英国医生托马斯·刘易斯定期通信交流。

1903. Willem Eindhoven's electrocardiograph measures cardiac activity and displays a reading, known as an electrocardiogram.

1903. ·因霍温的 cardiograph 测量心脏活动并显示读数，称为心。

After 1909, with the aid of an early electrocardiograph, British physician Thomas Lewis discovers atrial fibrillation, a condition that causes an irregular heart rate.

1909年后， 借助早期心仪，英国医生托马斯·刘易斯发现了心房颤动，这是一种导致心率不规则的病症。