The main results are as followings: the active reserve is positively related to the probability and magnitude of the output shock,the relative risk aversion coefficient,the subjective discount rate of the representative agent and relative price of international reserves,while negatively related to eco.

Then carried on the estimation to the main exogenous variable, and conducted the real diagnosis research the economical effect and industrial impact Beijing Olympic Games according to the scene design.

By using optical microscope and SEM,the change in structure and the fracture morphology of a bainitic ductile iron under high-velocity impact were investi-gated.