This paper put forward the conceiving of the optimization of collecting books and exerting the benefit,analyze the inside relation of cause and effect and the relation of dialectic,and probe into the direction of building library on the internet and principles,basic approaches,policies for dealing with the two.

The article explains the profile of sluices in Guangxi,the benefits to produce,their safety situation and the problems in risky-laden sluices,also expounds the necessity and emergency of the risk elimination & reinforcement engineering.