单词	electrocardiograph
释义	electrocardiograph /ɪˌlɛktrəʊˈkɑːdɪəɡrɑːf / (abbreviation ECG) noun A machine used for electrocardiography.Your heartbeat is monitored throughout the procedure using an electrocardiograph machine.... One brother, now a retired consultant physician, told me that when he started medical school electrocardiographs of this size were still in use. The electrocardiograph was among the earliest useful medical electronic instruments, having been coupled to an amplifier about 75 years ago.
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