The prevention and control of crimes should be based on the tri-diversionstructure: crime, victim and country.
犯罪预防和控制应立足于犯罪、被害和国家三元结构，被害人是犯罪预防体系的构成要素之一。
2
Bottom stockade diversion junction has the advantages of simple structure, being easy to construct and cheap to build.
底栏栅引水枢纽具有结构简单、施工方便及造价低廉等优点，在我国应用较广。
3
Using these methods, the stabilization of the diversion of a large-scale hydropower station was analyzed. According to the result, the designer could make a more rational tunnel structure.