electrocardiogram telephone

例句：

1. 1. Thedoctor performed an electrocardiogram tocheck his heart's health.
   医生进行了心电图检查来检查他的心脏健康。
2. 2. Duringthe test, the patient had to lieon a table with electrodes attached tohis chest.
   在测试期间，患者必须躺在桌子上，胸部上有电极贴附。
3. 3. Theresults of the test wereused to diagnose the patient's heart condition.
   测试结果被用来诊断患者的心脏状况。