By applying blackboxtheory inlet pressure, inlet subcooling, outlet pressure and valve opening are selected as influence factors to flow coefficient of electronic expansion valve (EEV).
根据黑箱理论提出将阀前压力、阀前过冷度、阀后压力和膨胀阀流通面积作为膨胀阀流量系数的影响参数。
2
In the third part, pondering for the teaching's theory about blackbox in senior teaching physics, I propose educational value of black-box in the middle school physics teaching.