·2,447,543篇论文数据,部分数据来源于NoteExpress
Constructing cartographic model is helpful to make complex system simplified and comparison is a main stage of model construction.
建立地图模型,有助于使复杂系统简单化,而比较是建立模型的主要环节。
youdao
应用推荐
模块上移
模块下移
不移动