display generator meaning in Chinese

显示产生器
显示发生器

On data access , plat adopts advanced display model of electronic chart as " database - dataset - object " : using database to maintain , organize and manage chart units ; using dataset to organize and operate elements of single map ; using s - 57 catalog to express the real object . on chart displaying , plat basis the contents of presentation library of s - 52 , get the s - 52 display by implementing the " chart display generator " . this dissertation is about the research i have engaged in
在海图数据访问上采用了当前流行的“数据库-数据集-物标”三层模式：在数据库层对水域的海图单元进行维护、组织和管理；在数据集层应用s - 57的数据模型对单幅海图的数据进行组织和操作，并完成对s - 57数据集的格式转换；在物标层，则使用s - 57的物标类目来具体的表示。