two dimensional echocardiograpt
two dimensional echocardiogram 二维超声心动图 two dimensional echocardiograpt 二维超声心动图仪 two dimensional ultrasonic cardiogram 二维超声心动图 ..
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方法利用二维超声心动图仪对251例健康人心脏多切面检查。
Method Two-dimensional echocardiographic studies on hearts of 251 healthy subjects were performed.
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