radiocardiograph

例句：

1. 1. The doctor used a radiocardiograph to monitor the patient's heart rhythm during the procedure.
   医生使用无线电心电图仪监测患者手术过程中的心脏节律。
2. 2. The study found that the use of radiocardiographs could improve the accuracy of ECG readings.
   研究发现，使用无线电心电图仪可以提高心电图读数的准确性。
3. 3. The patient was admitted to the hospital for further testing and treatment after the radiocardiographshowed abnormal results.
   患者因无线电心电图显示异常结果被转入医院接受进一步检查和治疗。