其次，根据决策支持系统理论，采用三库结构即：数据库、模型库、方法库及其管理子系统并设计各库的组成与功能。

Then the bases of system were designed, which included data base, model base, method base as well as each one's management base.

youdao

其次，根据决策支持系统理论，采用三库结构即：数据库、模型库、方法库及其管理子系统并设计各库的组成与功能。

Then the bases of system were designed, which included data base, model base, method base as well as each one's management base.

youdao