小矿开发与管理事实上已经成为许多地方国土资源管理部门的主要工作内容。

To manage small-scale mines has became important administerial contents for many local departments of land and resources management.

youdao

小矿开发与管理事实上已经成为许多地方国土资源管理部门的主要工作内容。

To manage small-scale mines has became important administerial contents for many local departments of land and resources management.

youdao