概述了支持软件和外部设备，设备选型设计、数据库和图形库等软件模块的结构及其管理。

An account of the supporting softwares and the peripherals, the construction of the modules for equipment selection, database, graph-base and their management has been made.

youdao

概述了支持软件和外部设备，设备选型设计、数据库和图形库等软件模块的结构及其管理。

An account of the supporting softwares and the peripherals, the construction of the modules for equipment selection, database, graph-base and their management has been made.

youdao