An equilibrium exchange rate target zone model for China was constructed using Krugman s theory to study the impact of various fundamental economic variables on the exchange rate between the RMB and the US dollar.

However,under condition of a certain loads and initial foundation deformation modulus it doesn t mean that the higher the foundation deformation modulus the better situations of stresses,stability,displacement and the cheaper the foundation treatment fee will be.

This paper has proved that ATA is the basic invariants of orthogonal transformIt has given necessary and sufficient conditions for the superposition of movement between two finite point ranges and sets.

There are many invariants for a transformation group, but they can be composite by some basic invariant at all.

The further relations among cardinal invariants,and the relation between ADR and completely Ramsey property are discussed.