Part III The Common Theor ofEcologicafEconomy System status of ecological economy sub-systems and its coupling status of ecological economy sub-systems ecological system is the foundation of E.E.S B.Theeconomic system is the object of E.E.S The technological system is the media of E.E.S4. The status of ecological economy sub-systems and its coupling Part III The Common Theory of Ecological Economy System 4.1 The status of ecological economy sub-systems A. The ecological system is the foundation of E.E.S B. The economic system is the object of E.E.S C. The technological system is the media of E.E.S