单词	phonocardiogram
释义	phonocardiogram /ˌfəʊnə(ʊ)ˈkɑːdɪəɡram / /ˌfɒnə(ʊ)ˈkɑːdɪəɡram/ noun Medicine A chart or record of the sounds made by the heart.The picture below shows a simple phonocardiogram of four heartbeats.... We analysed the phonocardiogram. using commercially available audio editing software.
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