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1·From the viewpoint of efficiency, the energy of cardiac murmur corresponds to useless work.

从效率的观点看，返流性心脏杂音对应于无用功。

2·Objective To study the relations between left ventricular band and cardiac murmur or premature ventricular contraction and echocardiographic features.

目的研究左心室条束的二维超声心动图特征和左心室条束与心脏杂音及室性早搏的关系。

3·But Opatosky's cardiac problems persisted through the years, with angina and a heart murmur.

但此后数年，奥帕图斯基仍受心脏病之累，心绞痛和心杂音时时折磨着他。

4·The typical sign was audible click and systolic murmur in cardiac apex.

典型体征为心尖区闻及喀喇音和收缩期杂音。

5·Objective: To explore the effect on cardiac light murmur and cardiac tricuspid valve return flow in normal children.

目的：探讨正常儿童心脏轻度杂音与瓣膜返流的相关性。