首先介绍了数字高程模型的基本知识，及其在水文中应用。

At first, the basic knowledge of DEM and its application in the hydrology were introduced.

youdao

首先介绍了数字高程模型的基本知识，及其在水文中应用。

At first, the basic knowledge of DEM and its application in the hydrology were introduced.

youdao