ECG and pulse rate oscilloscope

例句：

1. 1. The ECGand pulse rate oscilloscope are essential tools for monitoring the heart's rhythm.
   心电图和脉搏率示波器是监测心脏节律的必备工具。
2. 2.The doctor used the ECG and pulse rate oscilloscope to diagnose the patient's condition.
   医生使用心电图和脉搏率示波器来诊断病人的状况。
3. 3. During the examination, the ECG and pulse rate oscilloscope were used to monitor the patient's vital signs.
   在检查过程中，心电图和脉搏率示波器被用来监测病人的生命体征。