Heart sound signal is a compound sound of blood fluxion in heart systolic and diastole phase.
心音信号是心脏在舒张和收缩运动中心肌、血液和瓣膜等机械振动产生的复合音。
A compound sound head is connected to an apparatus with diagnosis and positioning thrombolytic.
复合声头连接至具有诊断和定位溶栓的仪器上。
Simon Morris, commercial director of Compound Security Services, the firm that produces the device, describes the sound as akin to an alarm clock going off in an upstairs bedroom.
生产这个产品的复合安全服务公司的商业主管西蒙·莫里斯，将这种声音描述成像在楼上卧房响起的闹钟一样的。
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