By right of nicer selves superiority and active developing tendency for years, Qingdao port is very likely to become shipping area center in north china regions.

This paper,beginning with the research of cluster concept,analyzes the important meaning of cluster concept for regional library network construction and holds that the key of regional library network s construction lies in the formation of library cluster system in the region and the exertion of its innovative ability,and then it makes a preliminary study of the relevant mode.

This paper analyses the present developing situation of library s automation and networking,expounds the significance of accelerating the construction of regional library s network and puts forward some suggestions.

The analysis of regional navigation constellation composing eight IGSO satellites;

With the establishment of the numerical model for 3-D flow,the 3-D flow field in this reach is calculated and the navigable area is analyzed according to the calculated results and navigable conditions.