短語詞組短語ecg electrocardiogram signal ecg 信號Wireless Ecg Signal Sampling 無線心電信號采集ECG signal coding ECG 信號編碼ecg signal acquiring 心電信號采集ECG signal pretreatment 心電信號預處理compression of ECG signal 心電信號壓縮ECG signal testing 心電測試ECG signal acquisition system 心電信號采集系統(tǒng)ecg signal detection 心電檢測 返回 ecg signal