Objective To assess the effect of ventricular synchronous pacing modes with different pacing site combination on cardiac work efficiency (CWE) of chronic heart failure in pigs.
目的探讨不同位点组合同步心室起搏模式对慢性心力衰竭心脏做功效率的影响。
Objective To study and select those medicine which could improve immigrants cardiac index and work-efficiency at high altitude.
目的研究筛选改善高原移居青年心功能提高做功效率的药物。
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。
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