结果：在容积图中左心循环作用为（54。

RESULTS: In the volume graph, the effect of left heart circulation was (54.

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本文通过研究主动脉容积变化微分方程，导出了心阻抗图与心脏射血的非线性函数关系。

This paper derived a non-Linear function relationship between the cardiac impedance plethysmogram and the heart ejection by researching differential equation of the aortic volume change.

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这种微观的电活动沿人体这一容积导体传至体表，通过电极传感器便可得到心电波形。

This kind of micro electric activity spreads along the conductor of men to the surface of the body, thus we can get the ECG by electrodes (sensors).

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