针对不同用户对象的需求，将3维电子地图系统具体划分为设计系统和浏览系统两部分，并在此基础之上详细阐述了3维电子地图系统的总体结构。

Aiming at the requirements of different users, it divided the 3d electronic map system into design system and browse system, and detailedly discussed the overall structure of 3d electronic map system.

youdao

针对不同用户对象的需求，将3维电子地图系统具体划分为设计系统和浏览系统两部分，并在此基础之上详细阐述了3维电子地图系统的总体结构。

Aiming at the requirements of different users, it divided the 3d electronic map system into design system and browse system, and detailedly discussed the overall structure of 3d electronic map system.

youdao