Through authors numerous practical operations, the way in employing normal in landform rectification is advanced.

笔者通过大量的工作实践 ，提出了用法线进行地形改正的方法。

youdao

Through authors numerous practical operations, the way in employing normal in landform rectification is advanced.

笔者通过大量的工作实践 ，提出了用法线进行地形改正的方法。

youdao