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THE proposed model is beneficial to understand mechanisms of intramyocardial circulation.Coronary arterial and venous blood flow can be emulated by the model which represents the typical vessel nets completely.The experimentally measured timed-varying perfusion and left ventricular pressure sources are used as driving inputs for the emulation.The phasic coronary blood flow characteristics predicted by the model exhibit waveform patterns that correlate quatitatively with generally accepted results.In addition,more work is done about the myocardial infusion and resistances which are essentially controlled by the coronary pressure driving force.The results makes it clear that the LABP and ECP are conducive to balance between supply and demand of coronary blood flow.